When I bought a NOS late '80s Merckx framest a few years ago, I emailed the serial number to an email address I found on the Eddy Merckx website and asked what they could tell me about it. They were able to tell me the year the frame was made, as well as what type of tubing was used. You might give it a try.
Lee Berg Palo Alto
On 1/8/06, Bingham, Wayne <WBINGHAM@imf.org> wrote:
>
> I don't think that anyone has figured out the Merckx numbering system.