MBT 1 (stands for Main Battle Tank 1) is a tank developed by Main Battle Tanks Inc. The MBT 1 first became available on March 29, 1937. Since then 327 have been produced and 326 bought. 321 by the Nasi Military and 5 by the Ackipow Country militry.
An upgrade, MBT 1.2 was released April 6, 1937. It included another machine gun, brining the total guns on the tank to 9:
3 machine guns