I have had the cartridge shown at left below for some time and always wondered who made it. It appears to have a raised “L” on the headstamp though it is possible that this is a machining marks. Thanks to the generosity of Zac W. (“cartguy”) I was able to acquire a second, almost identical, specimen at St. Louis last year and this is shown at right below.
I have highlighted the raised marks on the case head which appear on both specimens. The case head colors are slightly distorted by the digital microscope – it does have a brass case.
It has a battery primer which is held in place solely by the force by which the primer holder was crimped in place. It resisted attempts to dislodge it during the sectioning process. Overall weight is 308.5 grains. Bullet weight is 226 grains and the powder charge is about 17 grains of fine blackpowder. Brass case and copper primer.
While the primer and primer holder have some minor visual similarities to Eley-made .450s, I am not convinced that it is British.
Any ideas ? Please – no discussions about ancient Aramaic script or Egyptian hieroglyphics !!