Analysis of information sources in references of the Wikipedia article "Vz. 52 machine gun" in English language version.
[Of the items requested] it will be possible to satisfy a request for the supply of 7.62mm bullets for the vz.52 self-loading rifle and vz.52 light machine-gun.....If the Cuban needs are to be covered ... it would be necessary to manufacture another 116 million 7.62mm cartridges, and 150 million 9mm cartridges in Czechoslovakia....the first shipment of specialized materials will be sent prior to signing the contract between Czechoslovakia and Cuba. This shipment, valued at about 50 million Kčs CIF, will include 10,000 Czechoslovak 9mm guns, 500 [Vz. 52] light and 250 [ ZB-53? ]heavy machine guns, 100,000 hand grenades and 40 million [small arms ammunition] cartridges.
