One Severne overdrive 7.5, I have no idea what vintage it is (its blue if that helps)
Features-Fits very well on a powerex or severne 80% 460/25 mast
-planes early (not quite as early as a new one though

)
-3 perfectly functioning camber inducers
-well aged monofilm with some "character" patches
-one head sized speed hole in the third panel

(who needs reflex, this puppy vents open when the gust hits

) its a split actually, easily repaired with some sail tape
-Free to any good home, probably someone wanting to try a sail with cams for the first time without the cost outlay.

PM me if interested, if you follow the wind round the river I may even be able to bring it to you.