This is the outline of an area to which four counting rods (the numeral four) have been added. Each counting rod has been placed on the diagonal, which indicates that the four areas referred to
are general rather than precise areas.
Illustrative Text Reference:
Harappa: Seal: H-513 a: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 286: Collections in Pakistan: Suomalainen Tiedeakatemia.
Inscription H-513 refers to the seasonal positions in the northern sky of the Wagon of Heaven asterism, which is located in the modern constellation Ursa Minor.