Apparently I have my frame size dimensions incorrect and for sub 10 bores the dimension was 56mm with the standard being 48mm on a boxlock breechloader while the sidelock was 62mm. Not sure on the 10 bores at the moment but I did check a Sauer/Manhattan Arms from a little later and the dimension was right at 60mm, still 5mm shorter than the Daly Gun.

Ok all you Daly Gun fans, what is the lowest serial number with H.A. Lindner's crowned crossed pistols control marks?

Kind Regards,

Raimey
rse