I can't find that there has ever been a thread on the .455's that was deemed "notable", so I thought I'd start one up where these could be viewed and compared.
I'll get this going with a Second Model (sometimes referred to as a Mark II) in the 63000 serial number range. It does not appear to have been altered or modified in any manner. The only non-factory applied markings I can see are the opposed broad arrows denoting deaccession and a crown over 30 on the butt.