This is a pictograph of a bundle of straw. Hence, it is the noun straw.
Illustrative Text Reference:
Harappa: Seal: H-43 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 179: Collections in India: Suomalainen Tiedeakatemia.
Inscription H-43 is interesting. The literal reading is: road straw equines. The caravans would have carried provisions for animals as well as people. H-43 is an example of how loads were clearly
Indus Script Sign Number 4077: List of Sign Variants: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.