The Indus Dictionary Project
This is a pictograph of a clutch of mugger crocodile eggs. Therefore, it means mugger eggs.
Mohenjo-daro: Seal: The Schoyen Collection: Schoyen Reference: MS 5059: (A note on the Schoyen website says that this seal inscription wil be published in Volume 3 of the Corpus of Indus Seals and Inscriptions.): https://www.schoyencollection.com/palaeography-collection-introduction/early-writing-introduction/4-1-4-indus-valley/indus-valley-seal-ms-5059: Accessed: 25 February 2018.
The Naxi (Dongba) pictograph for the noun egg is a similar oval shape¹, but rotated through 90 degrees.
Clutch of Mugger Crocodile Eggs: Lynn Fawcett, 2017.
1. Seaver Johnson Milnor, 2005: A Comparison between the Development of the Chinese Writing System and Dongba Pictographs: University of Washington Working Papers in Linguistics, vol. 24, p.38, fig. 1, Seattle: http://depts.washington.edu/uwwpl/vol24/pub_submission_Milnor.pdf: Accessed: 7 June 2020.