Rare CZ-52 chambered in 9mm from the factory

[Bcviking]

Ok i have a non import marked CZ-52 pistol with a matching # Cz marked 9mm barrel . It turns out these are very rare , i have researched it a bit and cant find very much info or value . it is for sale but i need to set a price the only value info i can find is that the are worth far more than a standard 52 , does anyone have any info for me thanks