What Dale suggests would make perfect sense, and I can't really tell from the pix if that boss is there, since there is not a good shot of that part of the down tube. If it exists (and I suspect it does), that would plant the frame right about in the '83 time-frame. There are actually a couple different types of that single-type, top-of-the-tube mount. I have one on my '83 3Rensho. I'll try and get a picture of that tonight.
Wayne Bingham Lovettsville VA USA
<< The thing that puzzles me is the use of derail cable guides on the top of the bottom bracket shell?!?! ....... Can't tell from the auction listing photos what type of shift levers would be used on the downtube, since there do not appear to be lever boss braze-ons. Suspect they were clamp-on, since the upper sections of the aero-tubes appear to be round at the lug junction(s).>>
Are you sure there isn't a brazed on little rectangle on top of the down tube where the shifters might be located? Those top-of-the-bb cable guides look similar to the Gippiemme made (or at least marketed) set, they are shaped differently from the Campy style top-of-the-bb versions; shorter and "pointing" differently...?
The top-of-the-down-tube "aero" Gippiemme deal looks like this:
There is a machined & black anodized piece added to the braze on which the shift levers themselves then attach to.... Rather than their normal lower position, the gear cables run more towards the top of the down tube in this system.. "Aero!"
Dale Brown Greensboro, North Carolina USA
I would suspect that this frame is from the early 80's, probably '83. Also suspect that it was a custom (possibly a team frame), rather than a stock frame, given the unusual details such as the tubes, number-tab braze-on and lack of shifter braze-ons. Serial number is somewhat consistent with early 80's frames, but there are still quite a few anomalies in Merckx frame numbering. At one time I had a custom Panasonic Team frame with a number-tab braze-on. It was essentially the same as a Corsa Extra, but without the "Corsa Extra" decal on the top tube. It's always interesting to find these "outside the norm" frames to keep us all guessing.
Wayne Bingham Lovettsville VA USA
>>>>>Assistance Dating an AERO-TUBED Eddy Merckx Frameset
Just purchased what appears to be an early 80s Eddy Merckx Aero-Tubed frameset, and would appreciate assistance in accurately dating it from knowledgeable list members.
From the catalogs found on the bulgier site, it appears to be a "CORSA EXTRA" model using the cast lugs and sloping crown. The Merckx #3 bulgier catalog shows bare frames with various mixtures of frame fittings, making it tough to pin this frame down.
The thing that puzzles me is the use of derail cable guides on the top of the bottom bracket shell?!?! There is also a brazed-on number tab present on the underside of the toptube. Can't tell from the auction listing photos what type of shift levers would be used on the downtube, since there do not appear to be lever boss braze-ons. Suspect they were clamp-on, since the upper sections of the aero-tubes appear to be round at the lug junction(s).
Here is the Wool Jersey address containing the photos copied from the eBay auction and the bulgier Merckx catalog:
Thanks in advance to the Merckx frame experts!
Kevin Kruger - Grantville, PA<<<<<