Cubical weights in graduated sizes.These weights conform to the standard Harappan binary weight system that was used in all of the settlements. The smallest weight in this series is 0.856 grams and the most common weight is approximately 13.7 grams, which is in the 16th ratio. In the large weights the system become a decimal increase where the largest weight is 100 times the weight of the 16th ratio in the binary system. These weights were found in recent excavations at Harappa and may have been used for controlling trade and possibly for collecting taxes.

Harappa Archaeological Research Project.