Is this a genuine Lego Liftarm?

[DrJB]

I found this liftarm02 while browsing on bricklink ... yet it does not show up in any set.

The longest THIN liftarms I'm aware of are at most 1x7. Was this a prototype of some sort?

I also found this one liftarm04 though it does not show in any set either

Edited October 2, 2013 by DrJB

[Front]

I really doubt that any prototypes from LEGO was made in that size (half width, 16 holes beam). It is simply too weak, will break too easy when a bending load is applied, even when made in the best materials LEGO use.

The L 4x4 arm is not even with the cored out areas between the holes.

Erland

Part Design

Edited October 2, 2013 by Front

[Balrog]

I can only think of these as custom made pieces, but not as original pieces.

[JopieK]

The L 4x4 arm is not even with the cored out areas between the holes.

well, I'm not sure, can be the perspective of the picture of course!

[aol000xw]

Some chinese Lego knock off. Both parts were added by the same guy.