Sorry but i could not read it, but it looks like end by "ico" or something, the first 2 letter looks like "D`A" , it could be the US GI who brough it back, doesnt looks like czech or german name? You should read it, the button is of czech or moravian member of Protektorat army or other uniformed unit.the holster was reused with larger pistol, as the securing strap has 2 hollows, the upper one is for normal CZ27.