https://tinyurl.com/y577tsch
Evidence is provided in Tamil lexicon providing the expressionsஇடங்கசாலை
iṭaṅka-cālai , taṅka-cālai lit. gold workshop as a synonym of ṭaṅka-šālā'Mint, place where money is coined'. Clearly, தங்கசாலை taṅka-cālai is a dialectical Meluhha form derived from the expression ṭaṅka-šālā 'mint' to specify the minting of gold coins. The reading of the m1690 and m71 Indus Script inscriptions presented herein are consistent with the rest of the Indus Script Corpora of over 8000 inscriptions which are wealth-accounting metalwork ledgers.
This is an addendum to: Thigh,buttock ṭã̄g PLUS fish' hieroglyphs on Indus Script signifies aya टंकशाला ṭaṅkaśālā 'alloy metal mint'. This resolves Asko Parpola's dilemma https://tinyurl.com/y6xdt34z The word टंक [ ṭaṅka ] as 'gold coin' is a short-form of the expression టంకసాల ṭanka-sāla. n. A mint.
Ta. taṅkam pure gold, that which is precious, of great worth. Ma. taṅkam pure gold. / ? < Skt. ṭaṅka- a stamped (gold) coin. (DEDR 3013)
I suggest the rebus reading of the 'thigh, buttock' hieroglyph on m1690 and m71 Pk. ṭaṁka -- m., °kā -- f. ʻ leg ʼ, S. ṭaṅga f., L. P. ṭaṅg f., Ku. ṭã̄g, N. ṭāṅ; Or. ṭāṅka ʻ leg, thigh ʼ, °ku ʻ thigh, buttock ʼ. 2. B. ṭāṅ, ṭeṅri ʻ leg, thigh ʼ; Mth. ṭã̄g, ṭãgri ʻ leg, foot ʼ; Bhoj. ṭāṅ, ṭaṅari ʻ leg ʼ, Aw. lakh. H. ṭã̄g f.; G. ṭã̄g f., °gɔ m. ʻ leg from hip to foot ʼ; M. ṭã̄g f. ʻ leg ʼ(CDIAL 5428) टांग or टांगडी ṭāṅga or ṭāṅgaḍī f (टंग S through H) A low or light term for the leg. 2 esp. टांग A stride: also the stride as a measure of land Rebus: ṭaṅka- a stamped (gold) coin.
Thus, (1) the pair of hieroglyphs on m71 read: टंक [ ṭaṅka ] 'thigh,buttock' rebus: टंक [ ṭaṅka ] 'gold coin' PLUS kuṭi'water-carrier' (Telugu) rebus: kuṭhi'smelter' (Santali); and
(2) the pair of hieroglyphs on m1690 read: टंक [ ṭaṅka ] 'thigh,buttock' rebus: टंक [ ṭaṅka ] 'gold coin' PLUS aya 'fish' rebus: ayas 'alloy metal'.
தங்கசாலை taṅka-cālai , n. < ṭaṅka +. Mint, place where money is coined; நாணயம் அடிக்குஞ்சாலை . (Tamil lexicon)
m71 seal![]()
After Fig. 15 in Parpla https://www.harappa.com/sites/default/files/pdf/script-indus-parpola.pdf (a) sequence ‘thigh’ + ‘fish’ at the beginning of the inscription on seal m1690 Mohenjo-daro, from n old photograph of a modern impression (After CISI 3.1:17); (b) a clearly recognizable variant of ‘hind leg’ or ‘thigh’ sign in a modern impression of seal m71 from Mohenjo-daro (After CISI 1:31)
టంకము ṭankamu. [Tel.] n. A piece of money: a coin: బంగారుటంకము a gold coin. A coin, of the value of 16 copper dubs. దీవారము. A composition of copper and pewter. A stonecutter's chisel. కాసెయులి. టంకసాల ṭanka-sāla. n. A mint. టంకవాటు or టంకసాలవాటు the name of a certain gold coin.
டங்கசாலை ṭaṅka-cālai , n. < ṭaṅka-šālā. Mint. See தங்கசாலை . (ஈடு , 1, 9, 8, ஜீ .)
Hieroglyph on m1690
Rebus reading refers to a people called ṭaṅgaṇa:
*ṭāṅkana ʻ a kind of horse ʼ. [Cf. ṭaṅkaṇa --2 , ṭaṅgaṇa -- 2 m. ʻ name of a people living northwest of Madhyadeśa ʼ R., Pk. ṭaṁkaṇa -- m. ʻ a non -- Aryan tribe ʼ]
K. ṭã̄gun m. ʻ a species of hill pony ʼ, N. ṭã̄gan, ṭāṅan, B. ṭaṅkan; M. ṭã̄kaṇ, ṭāk˚ m. ʻ a species of small horse ʼ; -- other forms with g ← NW. or Himalayan source: A. ṭāṅnā ʻ a smart horse ʼ; B. ṭāṅgan ʻ a species of pony ʼ, Or. ṭāṅgaṇa; H. ṭã̄gan m. ʻ hill pony ʼ; G. ṭã̄gaṇ n. ʻ a species of pony ʼ.(CDIAL 5454)
இடங்கசாலை iṭaṅka-cālai , n. < ṭaṅka +. Mint; அக்கசாலை. வேங்கடாத்திரி தேவமகாராஜய் யனுக்குத் திருவையாறு இடங்கசாலை பாலிக்கையில் (S. I. I . v, 224). இடங்கணி iṭaṅkaṇi , n. < ṭaṅka. Chisel; உளி . (W .) இடங்கம் iṭaṅkam , n. < ṭaṅka. 1. A weight of 24 iratti, for weighing precious stones; இரத்தினம்நிறுக்க உபயோகப்படுவதும் 24 இரத்திகொண்டதுமான நிறைகல் . (சுக்கிரநீதி , 189.) 2. Shovel; மண்தோண்டும் படை. (நாநார்த்த.) . 3. Scabbard; வாளினுறை. (நாநார்த்த.) 4. Ankle; கணைக்கால். (நாநார்த்த.) .
தங்கசாலை taṅka-cālai , n. < ṭaṅka +. Mint, place where money is coined; நாணயம் அடிக்குஞ்சாலை . (Tamil lexicon)
*ṭāṅkana ʻ a kind of horse ʼ. [Cf. ṭaṅkaṇa --2 , ṭaṅgaṇa -- 2 m. ʻ name of a people living northwest of Madhyadeśa ʼ R., Pk. ṭaṁkaṇa -- m. ʻ a non -- Aryan tribe ʼ]
K. ṭã̄gun m. ʻ a species of hill pony ʼ, N. ṭã̄gan, ṭāṅan, B. ṭaṅkan; M. ṭã̄kaṇ, ṭāk˚ m. ʻ a species of small horse ʼ; -- other forms with g ← NW. or Himalayan source: A. ṭāṅnā ʻ a smart horse ʼ; B. ṭāṅgan ʻ a species of pony ʼ, Or. ṭāṅgaṇa; H. ṭã̄gan m. ʻ hill pony ʼ; G. ṭã̄gaṇ n. ʻ a species of pony ʼ.(CDIAL 5454)
Evidence is provided in Tamil lexicon providing the expressions
This is an addendum to: Thigh,buttock ṭã̄g PLUS fish' hieroglyphs on Indus Script signifies aya टंकशाला ṭaṅkaśālā 'alloy metal mint'. This resolves Asko Parpola's dilemma https://tinyurl.com/y6xdt34z The word टंक [ ṭaṅka ] as 'gold coin' is a short-form of the expression టంకసాల ṭanka-sāla. n. A mint.இடங்கசாலை iṭaṅka-cālai , n. < ṭaṅka +. Mint; அக்கசாலை. வேங்கடாத்திரி தேவமகாராஜய் யனுக்குத் திருவையாறு இடங்கசாலை பாலிக்கையில் (S. I. I . v, 224). இடங்கணி iṭaṅkaṇi , n. < ṭaṅka. Chisel; உளி . (W .) இடங்கம் iṭaṅkam , n. < ṭaṅka. 1. A weight of 24 iratti, for weighing precious stones; இரத்தினம்நிறுக்க உபயோகப்படுவதும் 24 இரத்தி
கொண்டது மான நிறைகல் . (சுக்கிரநீதி , 189.) 2. Shovel; மண்தோண்டும் படை. (நாநார்த்த.) . 3. Scabbard; வாளினுறை. (நாநார்த்த.) 4. Ankle; கணைக்கால். (நாநார்த்த.) .
Ta. taṅkam pure gold, that which is precious, of great worth. Ma. taṅkam pure gold. / ? < Skt. ṭaṅka- a stamped (gold) coin. (DEDR 3013)
I suggest the rebus reading of the 'thigh, buttock' hieroglyph on m1690 and m71 Pk. ṭaṁka -- m., °kā -- f. ʻ leg ʼ, S. ṭaṅga f., L. P. ṭaṅg f., Ku. ṭã̄g, N. ṭāṅ; Or. ṭāṅka ʻ leg, thigh ʼ, °ku ʻ thigh, buttock ʼ. 2. B. ṭāṅ, ṭeṅri ʻ leg, thigh ʼ; Mth. ṭã̄g, ṭãgri ʻ leg, foot ʼ; Bhoj. ṭāṅ, ṭaṅari ʻ leg ʼ, Aw. lakh. H. ṭã̄g f.; G. ṭã̄g f., °gɔ m. ʻ leg from hip to foot ʼ; M. ṭã̄g f. ʻ leg ʼ(CDIAL 5428) टांग or टांगडी ṭāṅga or ṭāṅgaḍī f (टंग S through H) A low or light term for the leg. 2 esp. टांग A stride: also the stride as a measure of land Rebus: ṭaṅka- a stamped (gold) coin.
Thus, (1) the pair of hieroglyphs on m71 read: टंक [ ṭaṅka ] 'thigh,buttock' rebus: टंक [ ṭaṅka ] 'gold coin' PLUS kuṭi'water-carrier' (Telugu) rebus: kuṭhi'smelter' (Santali); and
(2) the pair of hieroglyphs on m1690 read: टंक [ ṭaṅka ] 'thigh,buttock' rebus: टंक [ ṭaṅka ] 'gold coin' PLUS aya 'fish' rebus: ayas 'alloy metal'.

టంకము ṭankamu. [Tel.] n. A piece of money: a coin: బంగారుటంకము a gold coin. A coin, of the value of 16 copper dubs. దీవారము. A composition of copper and pewter. A stonecutter's chisel. కాసెయులి. టంకసాల ṭanka-sāla. n. A mint. టంకవాటు or టంకసాలవాటు the name of a certain gold coin.
Hieroglyph on m1690
Rebus reading refers to a people called ṭaṅgaṇa:
*ṭāṅkana ʻ a kind of horse ʼ. [Cf. ṭaṅkaṇa --
K. ṭã̄gun m. ʻ a species of hill pony ʼ, N. ṭã̄gan, ṭāṅan, B. ṭaṅkan; M. ṭã̄kaṇ, ṭāk˚ m. ʻ a species of small horse ʼ; -- other forms with g ← NW. or Himalayan source: A. ṭāṅnā ʻ a smart horse ʼ; B. ṭāṅgan ʻ a species of pony ʼ, Or. ṭāṅgaṇa; H. ṭã̄gan m. ʻ hill pony ʼ; G. ṭã̄gaṇ n. ʻ a species of pony ʼ.(CDIAL 5454)
*ṭāṅkana ʻ a kind of horse ʼ. [Cf. ṭaṅkaṇa --
K. ṭã̄gun m. ʻ a species of hill pony ʼ, N. ṭã̄gan, ṭāṅan, B. ṭaṅkan; M. ṭã̄kaṇ, ṭāk˚ m. ʻ a species of small horse ʼ; -- other forms with g ← NW. or Himalayan source: A. ṭāṅnā ʻ a smart horse ʼ; B. ṭāṅgan ʻ a species of pony ʼ, Or. ṭāṅgaṇa; H. ṭã̄gan m. ʻ hill pony ʼ; G. ṭã̄gaṇ n. ʻ a species of pony ʼ.(CDIAL 5454)