Insidious C. 

This freewheel came with a hub I just bought. The seller said it was very rare and cutting edge back in the day. I am pretty sure this wont work with any of the derailleurs I am familiar with. Does anyone know what derailleur is compatible? Also is a special skewer needed for this style hub? Thanks.

Jeff Wills

You need a derailleur made by M.C.Escher.

scarlson 

Ahh, the rare hyperglide planetary, no less, as noted by the ramps and pinholes (not to be confused with pins, pinheads, wormholes, or worm-drive) and certainly not to be confused with later Japanese inventions, hyperglide or hyperdrive.

Of course, the French invented it. It is a little known fact that les frères Deperdussin invented this devilishly curious device after being inspired by the Fokker synchronizer mechanisms present on WWI aircraft to allow the machinegun to fire through the propeller arc. A young mechanic notorious for leaving file marks on everything, by the name of René Louis Théodore Herse, then stole the idea for les Avions Breguet, and unsuccessfully tried to adapt it to bicycles using company cash during the chaos of late WWI. The British, of course, preferred epicyclic gearing. What you've got there, though, can only be attributed to the late, great André REISS of Cycles Reyhand, who died singlehandedly holding off an entire platoon of panzers on the Aisne front in June '40, using only a couple of improvised giant frag grenades made of spent acetylene tanks and the stockpile of leftover parts from the Nivex factory (that's why they're so expensive these days). We'll never know how he got the planetary hyperglide hub to work, so derailleur compatibility is best left to the imagination, but perhaps something made of Nivex parts makes sense for Reyhand. Of course, the proper fixation to the frame is not a quick release, but a Bell wingnut. Paul CHARREL would have of course seen the technical drawing when going through the Reyhand shop postwar, but probably mistook it for the doodle of a madman.

Yes, what you've got there is a piece of history.

pastorbobnlnh 

Your Planetary freewheel is the Pluto to this Jupiter.

montclairbobbyb 

Is it a drillium freewheel**********