I have a James tolley 12 bore and when looking at the barrel flats I can see 3” stamped.
I assume this is cartridge length or chambers? The barrels are also 32”
Think the date is 1910 ish,
On the subject of the double rifle I’m looking at, would the caliber and cartridge info be on the barrel flats on the rifle
Like it is on my old shotgun?
Thanks.