« Reply #1 on: June 10, 2018, 05:55:30 PM »
Does it say "Pistole Modell 27" on the left hand side of the slide?
The 27 is chambered in 7.65mm (.32 ACP).
The diagonal grove and it being in .380 sounds like you have a CZ 24.
The T cz 30 means that it was in a Signal Battalion. The 30 either being the year or the number of the weapon--most likely the year
The J 31 means that it was in a Cavalry regiment and possibly the next year 1931.
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CZ24/27/38/40P/45/52, Vzor 50/70,75BΩ,75D Compact,P01/07/09,P10M/S/C/F(9mm,.45), Phantom,SP01 Tactical,Shadow 2 (Blue,Urban Gray), 82/83/85 PreB, 97BE,97BD,97BDE,100,1911A1, 2075D RAMI,452 American,550 Urban Counter Sniper,805 Bren S1,Drake G2,Duo,Z,vz24 8mm Mauser,FK 7.5 BRNO Field Pistol, PSD