I got this with a bunch of tool at an auction, just wondering what the set is, couldnt find it online. It is about 13"x4". Neat little box I will give a quick resto to. Also has stamped on it after box no. 4796.
I have a 1967 Proto catalog and that box is listed with 2 different 1/4 drive sets, and also avail by itself. Almost all proto part #'s for the 1/4 stuff start with 47.