Sherman 75mm turret roofs
The early "Low bustle" 75mm turrets usually have an early "split hatch" tank commander's cupola on the right side (as seen on the picture),
and no loader's hatch on the left side. However, some early turrets can be found with the "vision cupola" (with a 1-piece hatch).
The later "Low bustle" 75mm turrets and all the "High bustle" 75mm turrets have an oval loader's hatch added to the left side of the roof.
They can be found with either "split hatch cupolas" (with a 2-pieces hatch) or "vision cupolas" (with a 1-piece hatch, as seen on the picture).
Late "High bustle" D78461 turrets have a bulge to better accomodate the commanders vision cupola (circled in red). This modification seems to have appeared on turrets produced from November 1944 (Joe DeMarco).
Sherman 105mm turret roofs
The 105mm turret is a transformed "High bustle" 75mm turret, with an additional ventilator at the rear, behind the tank commander's cupola and loader's hatch. It is usually found with the late model of tank commander's cupola, called the "vision cupola".
Sherman 76mm turret (a.k.a. T23 turret) roofs
The early T23 turrets have two large cupolas, the loader's cupola on the left side is usually a "split hatch cupola" (with a 2-pieces hatch), and the tank commander's cupola on the right side is usually a "vision cupola" (with a 1-piece hatch) .
The late T23 turrets have the loader's cupola replaced with an oval hatch. The tank commander's hatch on the right side is either a "split hatch cupola" (with a 2-pieces hatch, as seen on the picture) or a "vision cupola" (with a 1-piece hatch).
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The early "Low bustle" 75mm turrets usually have an early "split hatch" tank commander's cupola on the right side (as seen on the picture),
and no loader's hatch on the left side. However, some early turrets can be found with the "vision cupola" (with a 1-piece hatch).
The later "Low bustle" 75mm turrets and all the "High bustle" 75mm turrets have an oval loader's hatch added to the left side of the roof.
They can be found with either "split hatch cupolas" (with a 2-pieces hatch) or "vision cupolas" (with a 1-piece hatch, as seen on the picture).
Late "High bustle" D78461 turrets have a bulge to better accomodate the commanders vision cupola (circled in red). This modification seems to have appeared on turrets produced from November 1944 (Joe DeMarco).
Sherman 105mm turret roofs
The 105mm turret is a transformed "High bustle" 75mm turret, with an additional ventilator at the rear, behind the tank commander's cupola and loader's hatch. It is usually found with the late model of tank commander's cupola, called the "vision cupola".
Sherman 76mm turret (a.k.a. T23 turret) roofs
The early T23 turrets have two large cupolas, the loader's cupola on the left side is usually a "split hatch cupola" (with a 2-pieces hatch), and the tank commander's cupola on the right side is usually a "vision cupola" (with a 1-piece hatch) .
The late T23 turrets have the loader's cupola replaced with an oval hatch. The tank commander's hatch on the right side is either a "split hatch cupola" (with a 2-pieces hatch, as seen on the picture) or a "vision cupola" (with a 1-piece hatch).
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