Check out the prices on the squeezer and rivet gun listed in the 'Popular Mechanics' mag from 1948.
http://books.google.com/books?id=1t...d=0CE4Q6AEwBA#v=onepage&q=Thor prs 10&f=false
http://books.google.com/books?id=1t...d=0CE4Q6AEwBA#v=onepage&q=Thor prs 10&f=false