Thank you for clearing up some of the fog! I believe you have found an error in "the book"! Page 259 states product code 103601 " reported as square butt", yours is clearly a round butt! Mr Nahas told me, in strictest confidence over a beer one evening, that "we(meaningSupica & Nahas) make mistakes too"! I hope you are collecting ALL the 629s in 3" barrel length? I would love to see that picture!
Thanks,jcelect