Brno model 2 dovetail size?

[Shootermick]

I’ve got a 1966 Brno model 2 that I’m buying a dovetail to pic rail adapter for. Anyone know what size dovetail it would be? Is it 3/8”? I’m away for a while with work so I can’t go and look at it myself. But if I can find out the size and buy I it now, then it will be at home waiting for me when I get there.

[No1Mk3]

G'day Shootermick,
Early Brno dovetails are 16mm across the widest point, Americans measure dovetails across the narrowest point so 3/8th (10mm) may be correct. Ask the seller to confirm their rings fit 16mm, Cheers