These giant ringstones are similar to ones found in Mohenjo-daro and Dholavira. Local legend claims they were the rings of a giant 17th century saint (Baba Nur Shah) who is buried on Mound AB.
Mound A-B
"The next three strata were devoid of any structural remains though the lowest of them was packed with a large number of undulating stone rings of the same character as those described by General Cunningham.
A paving of brick rubble and broken ring stones, dating to late in the Harappa phase, was found on top of Mound AB to the west of the wall void shown in 50.
Different sizes and colors of ringstones from upper Harappa phase levels of Mound AB, Trench 39N. The smaller rings may have been used to make decorative columns while the larger ones were probably column bases.
This Harappa phase ringstone was originally found many years ago while local residents were digging a well in Harappa town. After some time it ended up at a house in Harappa town where it eventually became buried in the courtyard.
Laboratory assistants Mohammad Naim, Shokat Ali, Said Ahmed, and Mukthar Massih carry the cleaned and conserved ringstone to the Harappa Museum for display.