Public Seal of Hong Kong 香港公印

This is a stamp from the old Hong Kong, design referenced from
https://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF%E5%85%AC%E5%8D%B0

As Wiki said, this stamp is used between 1952-1997. This is a test sample from a 3D modeling software that I am working on and seems the model is exporting quite well.