New help identifying a pistol

[carmy]

I need some help identifying a pistol. It says "CESKA ZBROJOVKA-PRAHA" on the slide followed by 7.65 in a circle. Below that "MADE IN CZECHOSLAVKIA".
On the inside of the grip below the trigger guard is stamped "NB 52". Anybody know what model CZ this is? Pic below.

 

[Squished]

Early CZ50?

 

[carmy]

Thanks

Thanks Squished!
I did a Google search for CZ 50 and found a picture just like mine except for the Praha part.