OK,so there are two variants of this. Firstly, there is the Revell-Monogram version:
The only differences that I can see are:
- The German body is moulded in yellow plastic whilst the US version is moulded in white
- The US instructions are the usual Revell type whilst the German version is is full colour.
- the box art on the US version says Level 4 whilst the German version says Level3.