Vintage Campagnolo identification help please

[Proto]

Anybody able to help me identify this Campagnolo rear mech? I've not seen one like it before, it has an unusual feature, see pic 5, where the body can be rotated a few degrees between the upper and lower pivots, see marks A and B on the body.
The 'faired' jokey pulley suggests late eighties to me, but it's not a C Record or early new generation Record as far as I know. Mountain bike range- Centaur, maybe? Anyone?
Many thanks.

http://www.prototype-productions.co.uk/tim/mech2.JPG
http://www.prototype-productions.co.uk/tim/mech3.JPG
http://www.prototype-productions.co.uk/tim/mech4.JPG
http://www.prototype-productions.co.uk/tim/mech5.JPG

 

[Fab Foodie]

No idea Proto... but it is a thing of beauty, no doubt!
Trust you're well, FF.

 

[Smokin Joe]

This website should give you an answer, takes a bit of trawling though.

http://www.campyonly.com/history.html

 

[papercorn2000]

Could be a mid-late 80's Chorus. They had an adjustment whereby you could increase the maximum sprocket size on the (7-speed, friction) gear cluster.

 

[Saddle bum]

It's a Record or Super Record, late 80s, before indexing. Got an identical example lurking in my garage somewhere.

EDit:typo.

 

[Proto]

FabFoodie, how you doin? All well here. Bumped into Claire V at Benson cafe last week. She's doing well too.

Word on the street (actually Rob Sallnow at 'the other place') confirms it as a 1987 Chorus. I've actually got two of them, the second incomplete. Sadly I've just flogged some Record friction shifters. I can feel an eBay USA moment coming on!

 

[Fab Foodie]

FabFoodie, how you doin? All well here. Bumped into Claire V at Benson cafe last week. She's doing well too.

All good here, still pootlin' along. Miss Claire V though... , not seen her for a while. Regards to EddyS too. Maybe a winter Oxfordshire pint is required now the dark's set-in?

 

[Rob S]

Could be a mid-late 80's Chorus. They had an adjustment whereby you could increase the maximum sprocket size on the (7-speed, friction) gear cluster.

The A-B thing had two purposes...one was to increase the maximum sprocket size but even in the normal position A of the short cage version it had a maximum of 31 compared to 28 of Record but it was to adjust to the type of taper of the freewheel to stop the mech fouling bigger sprockets as it moved towards them.

 

[Mortiroloboy]

All good here, still pootlin' along. Miss Claire V though... , not seen her for a while. Regards to EddyS too. Maybe a winter Oxfordshire pint is required now the dark's set-in?

FabFoodie, how you doin? All well here. Bumped into Claire V at Benson cafe last week. She's doing well too.

Word on the street (actually Rob Sallnow at 'the other place') confirms it as a 1987 Chorus. I've actually got two of them, the second incomplete. Sadly I've just flogged some Record friction shifters. I can feel an eBay USA moment coming on!

Ooh, why oh why does anyone actually use Sh*m*n*?

We often go to Benson and stop at the cafe on the River, just refurbed, and very nice, maybe one day well meet, Mmm Claire V I remember her from the old C+ forum, she always sounded v. nice in her posts

 

[Fab Foodie]

Ooh, why oh why does anyone actually use Sh*m*n*?

We often go to Benson and stop at the cafe on the River, just refurbed, and very nice, maybe one day well meet, Mmm Claire V I remember her from the old C+ forum, she always sounded v. nice in her posts

Might this help with identification...

 

[Mortiroloboy]

<checks over shoulder> Ooooooooooh I'm in love lust!

 

[ColinJ]

Hmm, I've got some old Campagnolo bits somewhere... Must check 'em out!