These are 2nd/ 3rd generation delta’s with what appears to be a stamped winged-wheel logo. The slightly rolled edge suggests that the logo has not been etched into the surface (as occasionally seen in the rare version of the 2nd/ 3rd generation delta - see my previous post for an example), rather an impression was left by a stamp or a mold which typifies first generation C Record componentry.
The 2nd generation bodies are wider than the first generation and enclose the standard 3-pivot mechanism (ok 4-pivot if you include the cable-locking bolt). There is no retaining clip on the underside and the faceplate is released by lifting the spring-loaded cable tensioner at the top.
The ebay troll hasn’t stumbled across an example like this before and any further information is appreciated. In the meantime the troll will investigate the identity of the Mr “Colnago” brazen enough to pantograph his name onto such a rare faceplate.
Sold on ebay 16 Aug for USD $635