I have my fathers 06 that he had before I was born which is now over 62 years ago. The s/n , yes both the same, indicates is was mfg in 1937. The books say that in 37 a lot of them were assembled from existing parts. I have never seen another 06 like this one, the slide is the same size and shape as a 62 and the stock has a steel butt plate like an 1890. I always asked him about the combination and his reply was, "thats the way it was when I bought it".