7.5mm paper patched Swedish Nagant - ID


Is anyone able to identify the markings on these three 7.5mm Swedish Nagant rounds?


R P = Raufoss Ammunisjonsfabrikk-Patronfabrikk, Norway, 1919. So a 7.5 x 23mmR Norwegian Nagant M1893 revolver cartridge

M = Ammunitionsfabriken Marieberg, Stockholm, Sweden, 1908 & 1916 or 1918 (last digit is hard to tell)


Thank you.

Any idea what the I in the 12 o’clock position on the first case indicates?

I’m guessing the backward C on the 2nd case is actually a zero, indicating 1909?

The 3rd case has a 6 in the 3 o’clock position.


The 1 in 12 o’clock position on the Norwegian round indicate lot 1 in 1919.


Thank you.