In this Indus sign, a scaled-down version of the noun prop is placed inside a pack. Thus, it gives us a bundle of wood.
Illustrative Text Reference:
Mohenjo-daro: Seal: M-118 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 41: Collections in India: Suomalainen Tiedeakatemia.
Comment:
This is Mahadevan's sign number 1080, which I have redrawn to better reflect the original.
Image Credit:
Bundle of Wood: Lynn Fawcett, 2018.