The lock on the left is the one I got last time. I rekeyed it to a Titan key by grinding back the stop on the neck.
Post on first lock:
http://www.lockpicking101.com/viewtopic.php?f=8&t=59187&p=434509#p434509
These are really nice brass locks but I haven't been able to find much info on them. If any one knows their history please let me know.
Also, any tips for cleaning the paint off them so as not to ruin the brass? I may just keep them the way they are on the outside and clean them up internally.
5 out of the six should be master-keyed to the same system. So I'm going to try to measure the pins and make my own little three tiered system.

