Boys and their toys Pt2

This one is even nicer, same site, same time. Built by Modern Toys from Japan, this is some sort of Meccano set. You've got to assemble it yourself and according to the box it has back and forth action. Don't we all love that.
I made a bit of an websearch for it but couldn't find the same box anywhere, I found some replica boxes of the same vintage for sale on an American website, and they went for incredible prices. But someone else must have known, as again I was outbid, still he made himself a bargain.