20mm x 138B

Seen several discussions in archives about similar 20mm x 138 casings as mine shown here. Thought I would share my findings for those who may still be looking for identification.

20/40 = 20 ItK 40 VKT
T = Tikkakoski(Finland)
41 = 1941
Size = 20mm x 138mm

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One example found at link below:

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Yes, I have one of those loaded with a dark blue AP projectile but the white stripe is half-way up the projectile, not above the driving band.

My example is E 15 with the same headstamp. White band above the drive band.