Lotsa stuff.  Right now this is a tool holder with a hex drive brace, 3 extensions99 3/4, 5, 1 1/2 with 3 sockets that appear to be extension couplings.  Nothing else.  Brace and long extension mkd Handle Lock Wrench Corp, Jamestown, N.  Y.  Patent pending  Has anybody heard of them ?

Also there is a socket set marked the same with a pat date I read as 12-12-22.  8 Totally unmarked sockets that are same dia at drive end in a metal holder.  The L handle is what is marked.