Beautiful lightweight that is labelled as a Petit de Cologne, but is more likely a late 70s Centurion Professional. Petit de Cologne is Heinrich Klein.
Its a mix up of decals. There are "Professional" waterslides under clearcoat - that seem to be made by Centurion - and there is the "Petit" headbadge and seat tube banderole that are made from laminated cardboard - something i have not seen before.
The design borrows a lot from Cinelli: 3 howled long point lugs and fork tangs, chromed bocama? internal fork crown, fastback seat stays with internal seat post binder and chromed top eyes.
The tube material is probably Tange. Suntour drop outs. Vertical drop outs in the rear, something innovative at this time? Nice details: TA down tube bottle bosses and TA? down tube boss for the shifters clamp.
A wild mix of components: Dura Ace EX crankset, pedals and headset. Dura Ace AX shifters and front dérailleur. Modolo Professional brakeset. Cinelli stem, 3ttt handle bars, SR seat post. Pat. 77 Campagnolo Super Record rear dérailleur. Nisi SLUDI 290 rims on Mavic hubs. Eddy Merckx version of Selle Italia Turbo saddle.
(Via: http://www.velociao.com)