Multi tool set travel knife handle man tool 1960 Japan

This 7 piece Multi tool set is based on a knife handle. A vintage travel companion man tool, made around 1960. It comes in a black leather set measuring about 14 cm or 5 1/2 inches high and about 24 cm or 9 1/2 inches wide when opened. Inside is the white pocket knife handle with philips screw driver, that functions also as a lever for attaching the 6 different tools. These tools are a hammer, flat head screw driver, saw, can opener, knife and file. The tools are marked ‘stainless steel’. There is no makers mark or country mark on it but it is of overall good quality and in great working and hardly used condition. After some research and based on the YKK zipper it could wel be from Japan. Check out the video showing the same tool sets in use.