Hello, folks. I'm selling this bottom bracket on ebay (along with a crankset) and it'd be nice if I could positively identify it. I'm no campy expert but I know there are some of you out there...

Also, I've checked all the photos on velobase and none of them seems to match my BB. Hmm. The spindle is hollow, which made me think 1st gen SR but according to the photos, no dice. The fixed cup seems oddly old fashioned so maybe it wasn't originally paired with spindle?