Have read early 1913+ guns may have mixed numbers. Are these numbers identified in the record books? I have a 1915 Specialty grade 16 with trigger guard off by 2 digits and forearm with 1912 serial.

Not true Norman, the serial numbers on major components always matched the serial number on the frame; even the small internal parts were serial numbered to the gun so that they were returned to the gun for which they were fitted as the gun was disassembled and reassembled during the production process. Serial numbers were even checked on low grade guns; and if a serial number was mis-stamped, it was corrected with an over stamp. But a Specialty is an upper grade gun and the gun works would never use odd numbered parts or fit parts or components with a serial number not matching the number on the frame.

If your LCS was ever a USA military gun, like the WW-II LCS guns, it may very well have mixed parts now ...... the military was a poor custodian of these SXS guns ..... I have seen several military marked LCS guns with mixed parts .... Think about it, a base might have had 20 or 30 or 40 identical LCS SXS guns and the armory boys did not pay the close attention that they should have .... posted by Jent.