I just picked up a Slavia 618, made in Czechoslovakia. The flea market seller said it used to belong to his dad and it had been in the family for 30+ years. It is in good condition and shoots well, but not real powerful.
I bought my second Slavia today, another 618. I plan to get my other one out, that I bought a couple of months ago and compared the serial numbers. It shoots well but I have not signed it in yet.
Hot dog! I gave the rear sight one lite tap and tried it. At 15 yards, sitting, without a rest I can hit this target consistently. Probably 7 out of 10.