The Short Ten - How many shooting one?

[J.B. Books]

Originally Posted by George M. Purtill

I got two.

I have a 10 hammer underlifter #10227- basically unfired- was owned by a Parker EE - a caster. I have never fired it but bought some RSTs from Morris so soo I will.

the second is a damascus PH grade 55861- very early hammerless. i alway thought it was a 12 but never fired it. well 2 weeks ago I dropped a 12 ga shell in it and the chamber swallowed it. we put in a short ten and fired it in a vise. no problem.
Mark Conrad's letter confirms it- it was sent back to the factory and bored out to a 10 guage with 2 and 5/8 chambers. Mark said he has never seen such a thing.
I think it will be my new skeet gun.

That is neat and explains at least one 2 frame (assuming it is a 2 frame) 10ga Grade 1 Twist. Can you scan and post the letter? Have you had the barrels walls measured, be interesting to know the thickness after the factory modification.