GLASS TANGRAM SET
This is a set from one time that I made a batch of 30 and sold at a local craft store. Mahogany box with a sliding lid and the tans cut from dark glass. Stenciled design and text on top with a 12 page photocopied, cut and stapled booklet inside.
This was before computers made that a fairly easy task. I can't tell you how many hours I spent with a fine tipped drawing pen and a ruler doing the original shapes before taking the drawings down to the local printer to be copied.