Excellent Condition 95%+! 5 1/2" Barrel. First Generation, No Prefix, Mfg. 1937, #355xxx. Manufacture date confirmed by Colt. We attempted to aquire a Letter of Authenticity but the request was not fullfilled due to missing shipping records covering the SAA for this time from. Apparently the records whent missing in the 70's due to suspected theft. The only thing we were able to confirm was that Colt did indeed manufacture a SAA First Generation in 38spl in very limited numbers posibbly as low as 25 total. We consulted with a number of experts and they confirmed the total manufacture number of 25. Please feel free to contact us with any questions.