Rumenia. This is a well known Rumenian travel chess set with an ingenious system to fold the board, while keeping the pieces on it, when you close the box. There are some small variations in the sets I have seen. Although I do have only one, I could make a compilation picture of 3 different ones. It is the last picture in the gallery.
- 20th century, possibly pre WW2
- Wood K 2.0; p 1.6 (including pins)
- Box 22.3×12.2×4.0 (closed)
- Board 16.7×16.5