Help identifying parts, looks to be metal

Hi guys, if anyone has any idea what ANYTHING is on this - please let me know. The prop is R2-D2's gripper arm, which would be great to replicate. The black & silver arm looks to be an old pneumatic cylinder, but I've no idea about anything else.

The link - http://atomicpickle.com/Gallery/Grasper

Thanks to AtomicPickle for the pics.
Cheers..
-James

 

The bit with the fine ridges on the back of the hand looks like a model engine piece. I think the four little stubs on it are where the exhaust pipes hook up. From the size, I'd guess it's from a 1/12 GP bike (transverse 4-cyl), or maybe a 1/20 F-1 car. Don't know if that's helpful at all...

 

Thanks a bunch for that info..
I'm totally new to kitbashing, so I'm unsure where to go from here. Aren't there websites with scans of loads of kits that I can cross reference, now that I know it's probably from a bike/f-1?
I dunno if I'll take a stab in the dark, and just buy something and hope at least one of the parts is in there.
Any advice?
Again thanks mate..
-James

 

go to the kitscans section at
www.studioscale.com