Picked this up for 5 bucks yesterday at a yard sale. Number 402-B, heavy brute. Nicely made, it's certainly the biggest pipe vice that I now own. The Hollands Manufacturing Company of Erie, Pennsylvania seems to have started up in the late 1880's as a manufacturer of industrial castings but went defunct somewhere in the last century. There isn't much information available on the web, aside from queries from people trying to find information on their Hollands vices.