(25,000 rifles per block) It is therefore likely that rifles in the 'TR' block were made in the 1940-1941 time frame. In the sequence of Romanian Vz.24's, there are '1940' date-crested rifles in the OR and RR serial number blocks. Each cycle had around 260,000 rifles, 10,000 for reach of the 26 letters in the alaphabet.if that is the correct number for the Czech language. Only 5 cycles of vz.24's wwre made for the Czechoslovak Army. Vz/24's which bear the 'D5' type phrase at the end of the serial number, like '2876 B4' are rifles made at Brno.