I might be able to help you out. I bought one of these hubs but could never find a shifter to suit it, so i put it in a box and forgot about it. Pretty sure it is a unused 4 speed. I'll check tonight.
I thought it was an inter4, it was advertised as new unused, but parts such as shifters/brakes/bracket and cables were hard to find (as i found out).
Not sure how much i paid for it, would £25 inc postage sound ok?