Tokarev ammo identification

what is this???

Czechoslovak “aym” code, 1950s.

Doc AV

To add to Doc AV post,

aym = the manufacturer Povázské Strojárne Národný Podnik, Povázská Bystrica, Czechoslovakia

53 = 1953

… and to complete above details:

– (dash) = single Berdan primer hole

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is it steel core?

This is my expectation, but I cannot say for sure. JonnyC, can you?

It’s tough with the Czech bullets. There is one lead core, and two steel core variations. I have never seen a reliable break-down on what goes with which headstamp.