One of the first things I want to try to talk about are the serial numbers and acceptance marks. One of the most common Vz-24 questions on Tuco's Mauser forum is " I have a Vz-24 rifle with Serial number XR xxxx. What can you tell me about it?"
On the Rifles used by the Czech Military, I have seen four different types of Serial number markings.
First, on the Gew 98 they used a standard four digit serial number ####
Second, on the 98/22, as you can see on the picture of my rifle is X #### (an alpha character followed by a four digit number).
The third type is found with the later rifles that have the E (lion) xx, and E3 (lion) xx acceptance marks. These rifles have the #### X# (four digits followed by a alpha character and then a number), like the Vz-24 rifle I have pictured 610 X1, or 1656 M4. I associate the E (lion) xx, and E3 (lion) xx acceptance marks with the Factory in Brno
The fourth type is just the opposite of the third type X# #### (an alpha character followed by a number then a four digit number) This type of serial number is found with the E4 (lion) xx Acceptance mark. I associate the E4 (lion) xx Acceptance mark with the factory in Bysterica.
Back to the question of the XR #### (an alpha character followed by the Letter R then a four digit number) serial numbers. These are almost curtainly from the contracts with the Romanian Government, you will see these rifles with the receiver rings scrubbed, with scrubbed receiver rings with dates 1937 thru 1940 stamped on them, partial crests of King Carol and partial Crests of King Michael.
Serial numbers with the P prefix and 1937 stamped on the receiver ring, are known to have been part of a contract with the Japanese Navy, there are Vet bring backs to support this. The P prefixed rifles with the 1937 stamped on the receiver ring in the latest import lots are apparently from that same lot to fill that production contract that were never delivered. Unless it came back from the Pacific, I would seriously doubt it got delivered to Japan. If it has that Century Import mark on it, it most likely came out of Romania.
There is some talk about rifles that have an E prefix to them that are allegedly from a contract with Estonia. I have no proof of that, but the guns I have seen or heard of are too late in the production run to fit my type two serial number description. It is possible, but I have no proof. In SADA's book he talks about guns going to Estonia, but they were in .303 British, and had the magazine altered to accept the rimmed cartridge. If you find one of those that will be a rare gun!