( now in english - ist a little bit easier...
)
The frame , if genuine or repl. , you have to proof local
because the genuine Polini 911 frame has no brands name inside , is on the first look like the repl.
( only the 911 GP/ 911r and also the 911 Gp 2 is different in the opposite of the repl. 911 - the holder for the motor)
but mayby you will see it at a few little things also:
the surfaces:
-the Polini frame surface is rougher than the repl. frame ( this kind of frame has a finer surface)
- under the fuel tank, the repl. has 4 little holes for the plastic pins, on each side at the top of the frame - they will needed for the rep. fuel tank
in the Polini frame not
- by the repl. frame, the chinese men don't put the distance axle in the inside of the back frame, but on the picture is already inside.
( but this kind of part you may mount also afterwards )
The other attachment parts are examinable ( see brands name ) ..., like the fuel tank and genuine no color painted ... and so on ...
Only the frame itself is always the problem, to proof...
Maybe it will give a little help.
( or - when you look at first at the holder of the motor , maybe you have luck and it's an genuine 911 GP frame , with only a 911 fairing
)