http://www.totalmodel.com/military/pages/military_45.shtmlfor the page
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The latest release from Matador Models, Kit code KCG-17, is a conversion to build a Bergepanzer IV. It is designed for the Airfx PzKpfw IV F. It comes with a derrick which may be mounted in 3 positions erect, or stowed for travel, and the supply of tools and equipment which typically festoon all engineer vehicles in the field. The German army was slow to build specialised recovery vehicles on the chassis of their tanks. Until 1943 the huge 18ton half tracks were seen as sufficient.
It was the advent of the Panther which forced the issue, and the success of the Bergepanther, which was used to recover all tank types, led to the development of the Bergepanzer IV, using vehicles returning for repair. This was a very late- war conversion, built onto vehicles that had come back for repair. Only 21 were recorded as delivered to Wehrmacht units by the end of the war. This, the first design, mounted a 2 ton derrick, and pulleys for towing, but no winch
credits to page link
hope this helps
reb