This composite Indus sign is composed of the noun consignment, the adjective winter, the verb to supplicate (in the form of a pair of cupped hands), and two arrows pointing in opposite
directions. It therefore, translates as winter consignment, in either direction, request.
Illustrative Text Reference:
Mohenjo-daro: Tablet incised copper: M-1548 B: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 227: Collections in Pakistan: Suomalainen
This is Mahadevan's sign number 346, which I have redrawn to better reflect the original.
Tablet M-1548 was a token for transportation across a ropeway.