Beautiful Old Set of Divided Cube Teaching Blocks wooden clappers with a natural edge with

with a natural edge with the marking MK BO JIA

19th c if not earlier

I believe dates to the early to mid 19th century—hand-blown

though a but more apparent on the lighter colored side

The sculpture measures 11 1/4" long

Beautiful Old Set of Divided Cube Teaching Blocks wooden clappers with a natural edge withI can't find any others out there quite like these, but I'm pretty certain they were used as teaching tools for math many years ago, and they feel very much akin to old geometric solids and the like. I know for sure that I could spend many hours playing around with these, configuring them in different ways, and the large cube, divided in several parts, is very much a puzzling exercise to piece back together once taken apart. It also seems to me that,