The M4 Sherman was the most popular American tank of World War II.
Between February, 1942, and June, 1945, a total of 49.000 units of all
versions were produced.
Dozens of variants of M4 tanks were created. They differed in the method
of hull production (welded, riveted, cast) as well as turret, main
armament and additional equipment. Several special versions were also
made (especially for the needs of the Normandy landing in 1944): the
floating Sherman DD (Duplex Drive), Sherman Crab (with anti-mine trawl),
Sherman Dozer (with bulldozer at the front - for demining and
engineering tasks), and the Sherman Zippo (Sherman with a flamethrower
mounted instead of the main gun).