Sign dossier · ICIT 260 · every major school
260
Sign 260
tool / weapon class · unique family variant
Rare. Any meaning claim will overfit. Treat as a graphic isolate until more texts land.
Research compilation from a published ICIT-style digitization — not a complete or licensed photographic corpus
Tokens here
8
Independent objects
8
Sites
2
Object classes
1
Frequency rank
155 / 592
Share of all tokens
0.07%
ICIT published freq.
—
Neighbour diversity
9
Graphic anatomy
Unique drawing for this catalogue number. A graphic aid, not a CISI plate tracing.
- Stroke groups
- 3
- Point marks
- 0
- Enclosure index
- 2
- Variant index
- 0
Mahadevan hint: No stable M-number crosswalk on this page.
Text behaviour
8 inscriptions in this compilation contain 260. Mean length 5.5; median 5. Site evenness 0.54 (1 = evenly spread).
Positional behaviour
Share of this sign’s tokens at the start, middle, or end of an inscription in the locked compilation. Direction errors move these bars. Not a phonetic value.
What every major school says
Marshall, Hunter, Knorozov, Mahadevan, Fairservis, Parpola, Wells–Fuls, Farmer–Sproat–Witzel, Rao–Yadav–Vahia, Sproat, Kenoyer/Vidale, and Indo-Aryan proposals — stacked, labelled, and kept in tension. A deeper page than a one-line “translation” is the point.
Positional function
Structural findingCurrent locked corpus: closing / terminal function. Role label ender-biased.
Why it is on the table: 8 tokens, start-bias 0.00, end-bias 2.77.
What would weaken it: Bias is corpus-relative. Direction errors and sign-splitting move signs between roles.
Induscript analysis engine on the locked compilation
Graphic class · tool / weapon class
ObservedICIT 260 is drawn in the tool / weapon class. Class is a graphemic convenience used so relatives can be compared — not a word, not a translation.
Why it is on the table: Family membership is the cheapest hypothesis: it only claims that similar drawings should be tested together.
What would weaken it: Wells over-splits; Parpola and Mahadevan merge. The family of this page is a working cluster.
Wells/ICIT graphemic sets; contrast Mahadevan 417-sign list
Implement / directional mark
Functional hypothesisTool- and arrow-like forms are candidates for function words, case-like marks, or implement names. Fairservis treated some as harpoons or arrows with phonetic values.
Why it is on the table: Linear weapons and combs occupy edge slots more often than expected for common nouns.
What would weaken it: A picture of a tool is still not a reading.
Fairservis; graphic-functional school
Mahadevan 1977 concordance
Structural findingNot a one-to-one dump of Mahadevan’s 417-sign list. ICIT 260 is a Wells/Fuls number; merge/split decisions differ.
Why it is on the table: Mahadevan remains the field’s default concordance even when sign counts disagree.
What would weaken it: Crosswalks between M-numbers and ICIT G-numbers are incomplete. Do not treat them as identical signs.
Mahadevan, The Indus Script: Texts, Concordance and Tables (1977)
Hunter 1934 sign list
ObservedHunter produced the first systematic post-Marshall inventory. Early pictographic identifications (fish, jar, man) survive as graphic labels, not as readings.
Why it is on the table: Historiography matters: many popular ‘translations’ still quote Hunter-era picture-names as if they were words.
What would weaken it: A 1934 pictographic guess is not evidence. It is the starting point later concordances refined.
G. R. Hunter, The Script of Harappa and Mohenjodaro (1934)
Wells–Fuls ICIT catalogue
ObservedICIT encodes this as a three-digit sign in a 700+ inventory (Fuls 2022–23: 709–713 signs in 71 graphic sets). Rare or unlisted in the excerpted frequency tables.
Why it is on the table: Finest published graphemic split. Useful for not collapsing allographs too early.
What would weaken it: Parpola argues Wells over-splits variants. Inventory size is itself a hypothesis.
Wells 2011/2015; Fuls, A Catalog of Indus Signs (2023)
Parpola Proto-Dravidian model
Semantic candidateParpola’s logo-syllabic Dravidian model would assign this tool / weapon class sign a rebus only after a pictographic identification. None is established here.
Why it is on the table: Most fully worked phonetic hypothesis in print. Internally disciplined, still unproven.
What would weaken it: Requires language identification first. No bilingual. Rebus steps multiply uncertainty.
Parpola, Deciphering the Indus Script (1994); 2010 lecture
Knorozov / Soviet positional school
Structural findingComputer-aided counts in the 1960s–80s already treated short texts as structured and leaned Dravidian. This sign is a data point in that tradition, not a Soviet ‘translation’.
Why it is on the table: Independent of Parpola in method; similar language lean. Shows the Dravidian hypothesis is not one author’s idiosyncrasy.
What would weaken it: Early computing on small samples overfits. Language lean was prior, not a result.
Knorozov and collaborators, Soviet studies of the Indus script
Fairservis linguistic-functional school
Functional hypothesisFairservis argued Harappan is a language and offered implement, numeral and toponym readings. For a tool / weapon class sign those readings are optional extras.
Why it is on the table: Useful because it names functions (numeral, implement) that can be tested against weights and object type.
What would weaken it: Many Fairservis values are under-constrained. Kept as historiography plus a few live functional tests.
Walter Fairservis, The Harappan Civilization and Its Writing (1992) and earlier papers
Farmer–Sproat–Witzel non-linguistic model
Functional hypothesisShort, non-random emblem sequences on elite objects can be non-writing: lineage marks, totemic formulas, or ritual identifiers.
Why it is on the table: Explains brevity, lack of bilinguals, and seal function without a lost language.
What would weaken it: Rao et al. 2009 argue conditional entropy looks more like a script than a random emblem set. Neither side has a bilingual.
Farmer, Sproat and Witzel (2004); contrast Rao, Yadav, Vahia et al. (2009)
Rao–Yadav–Vahia statistical school
Structural findingBlock-level entropy and bigram directionality are treated as evidence that the system is structured like a script, not as a translation. This sign’s locked-corpus role is ender-biased.
Why it is on the table: Statistics constrain function, not phonetics.
What would weaken it: Structured non-linguistic systems also have bigrams. Entropy is not a language ID (Sproat 2014).
Rao et al., Science (2009); Yadav–Vahia positional papers; Sproat 2014 critique
Object-function school (Kenoyer, Vidale, Frenez)
Functional hypothesisWhatever the signs ‘say’, seals and sealings are administrative and craft devices. Meaning, if any, is tied to identity, ownership, or office — not narrative literature.
Why it is on the table: Archaeology is the only bilingual we actually have: context, not captions.
What would weaken it: Context can suggest function of the object without reading the signs.
Kenoyer; Vidale; Frenez; Possehl syntheses
Indo-Aryan / Vedic mappings (Kak and others)
Unverified proposalProposed Sanskrit or Vedic values for Indus signs. No bilingual, no accepted crosswalk, and chronology is contested. Recorded so the model is visible — not so it can be quoted as a reading.
Why it is on the table: A research platform that hides a popular school is not evidence-led.
What would weaken it: Failed the bilingual test, the positional test, and the ‘does not overfit’ test as currently published.
Subhash Kak and related Indo-Aryan proposals
What a bilingual would do
ObservedA single securely read bilingual (Indus vs a known script) would re-rank every card on this page. Until then, depth means listing tests, not printing a word.
Why it is on the table: Egyptian, cuneiform and Linear B moved when bilinguals or internal grids arrived. Indus has neither.
What would weaken it: Waiting for a bilingual is not an excuse to ignore structure. It is an excuse to refuse fake certainty.
Robinson surveys; platform method
Source stack — all known schools
Integrated from excavation reports, concordances, rebus models, statistical papers and archaeological syntheses. CISI plates are not reproduced.
1931 · excavation
Marshall 1931
First public corpus of the script as an archaeological fact
1934 · signary
Hunter 1934
First systematic sign list after Marshall
1938 · excavation
Mackay 1938
Object classes, findspots, seal function
1965–1981 · Dravidian
Knorozov / Soviet school 1960s–80s
Computer-aided positional work; Dravidian lean
1973–1981 · concordance
Koskenniemi–Parpola 1973–81
Computer concordance that precedes Mahadevan in method
1977 · concordance
Mahadevan 1977
Concordance, 417 signs, positional tables — field default
1971–1992 · linguistic
Fairservis 1970s–92
Harappan-as-language; numeral and implement readings
1994–2010 · Dravidian
Parpola 1994 / 2010
Logo-syllabic Proto-Dravidian rebus model
1987– · corpus
CISI (Parpola et al.) 1987–
Photographic corpus — not reproduced here
1988– · Indo-Aryan
Kak 1988–
Indo-Aryan / Vedic mappings — unverified, no bilingual
2011–2015 · signary
Wells ICIT 2011–15
Graphemic split, 676–694 signs
2010 · Dravidian
Bonta 2010
Dravidian-adjacent interpretation — labelled as a model
2004 · sceptical
Farmer–Sproat–Witzel 2004
Non-linguistic emblem hypothesis
2009– · statistical
Rao–Yadav–Vahia 2009–
Entropy and Markov structure
2014 · sceptical
Sproat 2014
Entropy is not language ID; computational critique
2008– · statistical
Yadav positional papers
Start/end regularity without a lexicon
2022–2023 · signary
Fuls 2022–23
713 signs, 71 graphic sets, published frequencies
1998– · archaeology
Kenoyer / Vidale / Frenez
Seal function, craft, administration
2002–2010 · archaeology
Possehl / Wright
Urban and economic synthesis
1990s– · excavation
Bisht / Dholavira signboard
A unique long public sequence — not a caption key
Tests that would change this page
Direction-flip test
Structural findingIf reversing analytical order destroys this sign’s start/end bias, the role label is direction-fragile and must not be promoted.
Many seals can be rotated. Role labels that survive a flip are stronger.
Platform method; Mahadevan direction discussion
Split/merge test
Structural findingIf merging this sign with its tool / weapon class relatives (or splitting its variants) moves it between opener/ender/core, the role is an artefact of the sign list.
Wells vs Mahadevan vs Parpola disagree on inventory size. That disagreement is a test, not a nuisance.
Wells 2015 vs Mahadevan 1977 vs Parpola CISI
Object-class test
Functional hypothesisIf the sign’s neighbours change by object type (seal vs tablet vs pottery), it may mark register, not a word that is constant across media.
Kenoyer/Vidale: different objects do different jobs.
Kenoyer; Vidale; mixed-register model
Closer-falsifier
Structural findingA bilingual in which this sign is clearly medial, or a large tablet series where it never ends a line, would weaken the terminal-function claim.
End-bias is the current structural fact. Facts can move.
Platform falsification rule
Bilingual promotion
ObservedOnly a securely provenanced bilingual, or an internal grid of the Linear-B type, can promote any card on this page from candidate to established meaning.
That is how every accepted script decipherment actually happened.
Robinson; platform method
Predecessors
Object types
This compilation often leaves type unspecified.
- Unspecified object8
Inscriptions containing 260
Graphic relatives · tool / weapon class
Same pictogram family. Relatives are not allographs unless a concordance says so. Each is its own unique drawing.
What this page refuses to do
- It will not print a one-word translation.
- A unique drawing is a graphic aid, not a CISI plate.
- Published ICIT frequencies and this compilation can differ because sign-splitting differs.
- Mahadevan M-numbers and ICIT G-numbers are not the same inventory.
- A bilingual would change every card on this page. Until then, depth means listing the tests, not the answers.