This question was raised on another forum, perhaps someone here can provide some additional information.
He’s already looked over the 75mm section on Tony Williams (excellent) website
[quote]“I have a 1909 75mm empty shell casing
It is 75mm diameter, 9” long, rimmed brass casing with markings “st” “GG 38” “GG 63” and “AUG 1909”. There appear to be three rings of marks left at the mouth of the casing (from crimping?). Any insights to identification are welcome."[/quote]
[quote]"Thanks for the link [/quote](to Mr. Williams website) [quote]I did not find mine. Mine is 75x228R with 91mm rim. Perhaps it is a cut down blank?
There wasn’t anything even close to 228mm length."[/quote]
I’m wondering if this could be a naval case?