Nice collection of 13mm's you have. I would be very interested if you could list what months of manufacture you have there? They were produced between "4-11" signifying April to November. The dates that seem to turn up most frequently are "9" & "11". From the Headstamps...... P = German manufacture (Polte). T-67 = Code designation for the 13x92 AT cartridge. 9 = September 18 = 1918. No one has ever encountered a "10" for October production
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Nice collection of 13mm's you have. I would be very interested if you could list what months of manufacture you have there? They were produced between "4-11" signifying April to November.
The dates that seem to turn up most frequently are "9" & "11".
From the Headstamps......
P = German manufacture (Polte).
T-67 = Code designation for the 13x92 AT cartridge.
9 = September
18 = 1918.
No one has ever encountered a "10" for October production
You mean 8? I’ve seen a significant quantity of 8 18 dated rounds but none others outside of photos