I'm basing the age on the serial number guide in Nigel Brown's British Gunmakers. He lists serial # range from 4700 to 6000 as dating between 1900 and 1910. These numbers are 5819 & 5820.
Brown also notes Boss had a habit of assigning serial numbers from when the "barrels are first lumped up together". I'm not sure how that tidbit would affect the dating of the barrels. However the gun could have been made years later if that's true.
The seller and I can't agree on a price so I most definitely will not be getting the Boss records.
Thanks all for your input.
Last edited by canvasback; 04/15/18 09:03 AM.