Hello again. Here is the PT-76B because why not.

Features: Lamp (AG1), Two-Plane Stabiliser, Amphibious capabilities, Sluggish Mobility, Ammo Racks located below the turret.

Source : WT Wiki
"The first experimental model of the PT-76B light aquatic tank received the factory title of "Object 740" and was assembled at the ChKZ in February, 1950. It immediately began factory testing. Following state-run tests and the elimination of defects discovered during the testing process, "Object 740" was recommended for acceptance into the arsenal of the Soviet Army. Serial production of the tank took place at the STZ from 1952 to 1953.

Tanks from the base batch released in 1952 underwent experimental field use. As a result, further refinements were made to the vehicle's joints and components. Following field testing and experimental use, "Object 740," now called the PT-76, was accepted into the arsenal by a decree of the USSR Council of Ministers: (#3636-1447) on August 6, 1952.

During the process of serial release various changes were made to the design of the vehicle to enhance its combat capabilities and technical characteristics. Vehicles with these modifications were produced until 1959, however, an updated DT-56TM cannon was installed on the tank in 1956. During the production run 1,896 PT-76B tanks were built. Of these, over 1,200 vehicles had the DT-56T cannon."