Campagnolo adjustable band front derailleur

[JWDR]

Does anyone have any insight into this Campagnolo front derailleur with an adjustable clamp? eBay is the only thing that comes up when I search for it and other than a $180 asking price it doesn't tell me much. It is a surprisingly tough front derailleur. It's been on my commuter bike for the past 4 years and I had it kicking around in a box for who knows how long before that. My question is should I hold onto it for some future mythical build or is it really nothing special and I won't kick myself a year from for selling it.

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/1AFCE014-D1B0-4F57-905A-D72759EA0C73-7217-00000A35B1FDB709_zpsf9a04cf2.jpg

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/DFA8AE85-97ED-4035-9177-FC39861BD71A-7217-00000A35BC9EE2BC_zpse1a0238a.jpg

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/882517E4-111B-4675-BCDD-0B4C7E35ABA7-7217-00000A35B6E7126B_zps98324cdf.jpg

[oldpotatoe]

Does anyone have any insight into this Campagnolo front derailleur with an adjustable clamp? eBay is the only thing that comes up when I search for it and other than a $180 asking price it doesn't tell me much. It is a surprisingly tough front derailleur. It's been on my commuter bike for the past 4 years and I had it kicking around in a box for who knows how long before that. My question is should I hold onto it for some future mythical build or is it really nothing special and I won't kick myself a year from for selling it.

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/1AFCE014-D1B0-4F57-905A-D72759EA0C73-7217-00000A35B1FDB709_zpsf9a04cf2.jpg

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/DFA8AE85-97ED-4035-9177-FC39861BD71A-7217-00000A35BC9EE2BC_zpse1a0238a.jpg

http://i914.photobucket.com/albums/ac345/WorldDominationRegime/882517E4-111B-4675-BCDD-0B4C7E35ABA7-7217-00000A35B6E7126B_zps98324cdf.jpg

Another interesting, small feature Campground created. One clamp-on FD, get the little chart out, push the wee pin into the correct holes, bob's yer uncle. Only issue is you can't really change it unless you have a new pin. I have installed many but never have tried to drive the wee pin out and re-install. Late 80s, early 90s.