new photos of WW1 .30 broomhandle in 9mm s.n. range

[Joe in Colorado]

I just took delivery of a .30 Mauser broomhandle just like any common "WW1 commercial" except it is s.n. 9709, which would seem to place it in the s.n. range of the "Red 9" pistol contract. I've seen that some Red 9's were relined and reworked as .30s-but there is no evidence of relining, also the pistol has the correct 2-curve .30 cal sight ramp, etc. I took the pistol to a fellow collector and Korean war veteran, he has a lot of broomhandles and took out 419386-we set it besides 9709 and both said "they're twins!" Could a 9mm have been reworked so completely and still look exactly like it's unaltered .30 cal twin? Do any fellow collectors know of other seemingly legitimate .30s in the 9mm s.n. range? Thank you all, best wishes, Joe