| Designer | : | Richter Company |
| Craftsman | : | Richter Company |
| Category | : | Put-Together |
| Material | : | Artificial Stone |
| Pieces | : | 9 |
| The erliest known example of this puzzle date from 1893. In the 1890's, the German firm Richter, known for their Anchor Stone Building Sets, started a line of dissection puzzles with a Tangram set. These puzzles are very collectable today. The company ceased production in 1963, but was recently restarted and they are once again producing the building sets and the puzzles, releasing one or two new ones per year. | ||