There's a third possibility--
One of the BSA FTR program for SMLEs, which was done in 1953.

So, if it has a unmatching bolt---
  1. 1.If it's a 1953 Lithgowicon, it's a good deal even with an unmatching bolt.
  2. 2.If it's a 1953 Ishapore, go beat $400 out of the guy who sold it to you.
  3. 3.If it's an "FTR 1953" rifle, make sure the bolt doesn't match and then go beat $300 out of the guy who sold it to you.

-----krinko