I found this on a site. Looks great. Does anyone have any idea if any were used in the field?



From July to September 1942, MAN produced two prototypes, only one of which was fitted with a turret. These were extensively tested and proved prone to many technical problems. At the same time, a first order for 1,000 tanks was placed, with the first tank expected in early 1943. In late 1942, a small pre-production series of 20 tanks was ordered. This was the Null-Serie, or Zero Series. Those 20 tanks were designated Panzerkampfwagen V Panther Ausfuehrung A and were technically different from later Ausf A production models. All were lightly armored (with 60mm frontal armor) and armed with the early version of the 75mm KwK 42 L/70 gun. This gun had a single-chamber muzzle brake from the 75mm KwK 40 L/43 gun and was mounted in a turret that featured a drum cupola that bulged the turret on the left side. A 650hp Maybach HL 210 P 45 engine of 21 liters (1,280 cubic inches] displacement powered them. Interesting conversion was Ausf D1 (some sources state that it was an early model Bergepanther) fitted with bolted on PzKpfw IV Ausf H’s turret (that could not be traversed), which served as a command tank of schwere Heeres Panzerjager Abteilung 653 on the Eastern Front in early/mid of 1944. The same unit used other early model Bergepanther that was mounted with 20mm Flakvierling anti-aircraft gun and Flakpanzer T-34(r).