On another thread on a Czech box that grew into a discussion of Czech headstamps viewtopic.php?f=8&t=14482, I posted the following comment:
I just had correspondence with another Forum member over G Roth (HP) and J Roth on when they were one and when they diverged since the two companies assigned different numbers to the 9x19mm cartridge in roughly the 1930. Further complications!
Fede, who understood what I was referring to posted the following request:
By the way, could you expand on the different numbers assigned to the 9x19mm cartridge? Do you have a picture of JR case no. 897?
Both of these were comments that were part of much longer emails that were relevant to the thread. The resulting discussion risked capturing the original thread so I have moved it here since the subject above deserves it’s own thread and is far from resolved.
The basic issue is that there is one J Roth case number that is used on a 9x19mm cartridge that the commonly accepted list of G Roth case numbers assignes to a Pinfire cartridge. The information below brought out a lot of new (to me) information, but as John M points out, also creates a lot of confusion since common wisdom has been that the GR and JR headstamps were the products of a single organization and should be consistent.
Please read on. I have asked some questions in the final email which may help us zero in on an answer to the issue discussed.
Thanks for any help!
ORIGINAL G ROTH VS J ROTH POSTING BY LEW
Fede, All I have is this B&W photo of the round in the Woodin Laboratory collection.
Hope someone has one of these lying around that they don’t love too deeply!!!
The Hirtenberg catalog from 1932 lists the number for the 9mm Para as 927 which is apparently a continuation of the G Roth numbers.