This is a pictograph of a man dressed in a cape, and wearing a back quiver. It can be either the noun or the verb form of escort or guard.
Illustrative Text Reference:
Harappa: Seal: H-1710 A (There is no view a.): Asko Parpola, B. M. Pande, and Petteri Koskikallio, 2010: Corpus of Indus Seals and Inscriptions: Volume 3,1: Page 238: New material, untraced objects, and collections outside India and Pakistan: Suomalainen Tiedeakatemia.
Mohenjo-daro: Seal: M-142 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 45: Collections in India: Suomalainen Tiedeakatemia.
Image Credit:
Indus Script Sign Number 17: Sign List of the Indus Script: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.