This Slavia 620 was made between 1989 and 1994. Reason for this is that up to 1989 Ceska Zbrovka Uhersky Brod ( CZ) located in Sothern Moravia used old CZ logo.. logo on this air rifle was adapted by CZ Uhersky Brod in 1989 when they had to surrender original logo to old and original CZ factory Strakonice located in Czech Republic. (Both CZ factories have presently different owners). Secondary, Czechoslovakia as country ceased existence in 1994 and split to today CZECH REPUBLIC and SLOVAK REPUBLIC. In all BRNO and CZ firearms, year of manufacturing can be traced not by serial numbers ..which are misleading..but 2 digits number usualy on side of receiver, or under barrel ( for example 92 stand for year of manufacturing 1992).