G'Day Fella's,

Deutsche_Vortrekker, as far as Brno and CZ firearms go, 1968 was a good year!
This was when the Soviets rolled in over the border.
I have a Brno, ZKK 600 (same as your 7x57), that was made in 1970 and luckily both the Metal and Wood fit and finish, are excellent!
From the firearms I have seen and heard about, the quality of both the Metal and Wood fit and finish, progressively became worse (after 1970ish), as a result of the Soviet influence on the factories!!!

And there are still Communist Stooges out there, trying to tell us that this was a good thing!
Pigs Arse I say, "Mediocrity, Isn't An Option"!!!

Hope that helps

Doh!
Homer