Cloth was an important commodity for the Indus traders. This symbol refers to the finished product.
For image credits, please see below.
Image Credits:
Indus Script Signs with Numbers: List of Sign Variants: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.
Indus Script Signs without Numbers: Lynn Fawcett, 2018 - 2019.