Anyone recognize this lock? Says it will fit a t/c.

http://www.gunbroker.com/Auction/Vie...Item=102737450

The backside differs from my t/c flintlock where the spring attaches. Engraving on the front side differs as well. My lock looks like this one:

http://cgi.ebay.com/THOMPSON-CENTER-HAWKEN-FLINTLOCK-MUZZLELOADER-PART_W0QQitemZ220246810554QQihZ012QQcategoryZ73979 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Any input is greatly appreciated.

Anyone selling a lock at a good price will be appreciated even more!