I have a GIANT 1918 WRA Co. marked brass casing that’s 34-1/2" long, 5-3/4" at the head and the other end is 4" across. I searched all over and can’t find one like it, so I’m guessing it’s rare. I’m new to this, so sorry if I don’t name the parts correctly. I would love to hear some info on this if anyone knows. Thanks, Mark!
A bit of information on the 4 inch/50 U.S. Navy gun: http://navweaps.com/Weapons/WNUS_4-50_mk9.php
WRA Co. drawing of the 4 inch Mk VII cartridge case, dated 1898 from the McCracken Research Library, Buffalo Bill Center of the West, WRA Co. digital collection):
Are there other markings stamped into the head (base) of the cartridge case?
Do you know what the rarity factor is on this? I can’t seem to find one either for sale or display anywhere!!
Oh, sorry, thank you for the diagrams!!
I don’t have one but as an example there are 6 different cartridge cases and a dummy round shown in one thread on BOCN ( http://www.bocn.co.uk/vbforum/us-4in-l-t73633.html ) and another WRA Co. 1918 cartridge case is discussed in a second thread on BOCN (http://www.bocn.co.uk/vbforum/threads/89906-Artillerary-round-to-identify?highlight=4inch). Plus I have personally seen others in collections. So I would wager these are not rare (a grossly misused term) but they are not common.