The pics of the engraved 83s are from CZ-UB's catalog. I think they do engraving in house with a staff of Czech elves.
CZ 83, 9 Browning Court, Satin Nickel
CZ 75 Compact, 9 Luger, Dual Tone
CZ 82, 9 Makarov, Czechoslovak People's Army Black
CZ 83, 7.65 Browning, Glossy Blue