It has been noted that a gold fillet of Mohenjo-daro also signified a standard device (lathe PLUS portable brazier) as proclamation (sangara) of furnace-, metal-work. http://bharatkalyan97.blogspot.in/2015/09/fillets-with-indus-script-hieroglyphs.html?view=mosaic Such a fillet may also have been worn as a proclamation ornament on the forehead. Or, as an honour conferred on the inventor-metals-turner with competence in alloying metallurgical techniques.
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The 'spiny-hornedd young bulls' are Indus Script hypertexts read rebus Meluhha kunda'fine gold', singi'ornament gold'. The device normally shown in front of this spiny-horned young bull is a sangaḍa 'composition of parts' of kunda'lathe' PLUS kammata'portable gold furnace' rebus: kunda kammaṭa 'fine gold mint' PLUS sangaḍa'catamaran',sangaha'collection' (of wealth products of metalwork); jangaḍ 'invoiced on approval basis'; jangaḍiyo 'military guard accompanying treasure'..
It appears that the early writing systems of Indus Script and Egyptian hieroglyphs evolved from visual-audio hypertexting. Aha, hyper text transfer protocol called http of 4th millennium BCE !!! The unicorn is a good example. The images evoke the Meluhha sounds kunda singi. The sounds mean 'horned bull', also, 'fine gold, ornament gold'. singhin means 'spiny horn'.
The unicorn signifies a horned bull. The image which is an Indus Script hypertext repeatedly deployed on Indus Script Corpora, dominates the Ishtar Gate of Babylon and might have signified a Gold Standard to the participants of Ishtar Festival Processions of 6th cent. BCE, carrying hypertexts or hyperimages (utsava bera). The idea of the procession with 'unicorn' is also seen on Mari frieze. khonda'holcus sorghum' खोंड a variety of jōndhaḷā Holcus sorghum. used as flagstaff !!! konda'furnace'kunda'fine gold'. I have presented/discussed 8000 inscriptions on 1) Epigraphia Indus Script, 3 vols. 2) Updates in Wealth Accounting System for a Nation -- Indus Writing.