The picture below shows a larger view of this Small Old Boxed Wooden Japanese Puzzle With Instructions. The box is shown opened with the folded instruction sheet. The puzzle is disassembled in the box. The puzzle is not dated but it is believed to be from the 1930s. The boxpictures the completed puzzle and it is marked as follows:
THE MIYAKO WOODEN PUZZLE THE KING OF PUZZLES EDICATIONAL INSTRUCTIVE (Educational) ENTERTAINING MADE IN JAPAN
To judge the sizes the boxmeasures about 2-1/8'' x 2-9/16'' x 1/2''. It appears to be in mint condition as pictured.