Slavia 624 made for german market, marked as Mars 624. Riflescope groove spacing is 13 mm.  
Mars 620
Technical Specifications
Overall Lenght 1 090 mm Manufacturer Ceska Zbrojovka Uhersky Brod
Barrel Lenght 485 mm Type piston with break barrel 
Sight Radius 460 mm Manufactured Pieces not available
Weight 2,65 kg Production Period 195x-197x
Caliber 4,5 mm



Rear Sight Side View
Rear Sight Top View
Front Sight
Shutter/Safety
Trigger and Trigger Guard
Markings

Slavia 620 made for german market, marked as Mars 620. Riflescope groove spacing is 13 mm.