Eddy Merckx Frame Identification

[Emerxil]

Hello everyone - especially fans of Eddy Merckx bicycles. If you want I can help you identify / describe any EMC (steel) frame based on photos, descriptions or manufacturer's markings (preferably all at once).
First you should get used to some facts (it will be difficult):
- The Z series does not mean 1985.
- the E series of 94/95 does not exist
- no EMC model was called Professional (officially)
- This means that no symbol (A,B, G, F.... and mythical P) has been assigned to this model (conventionally called "Professional").
- not all frames built with Columbus SLX/SPX are X marked, not all frames marked with X are Corsa Extra model
- T is not assigned to Columbus TSX
- slope crown was introduced as early as 1981, the guides over BB cover were installed as early as 1986
- all the "professional extras" (number hanger, name on frame, cable inside the top tube) were only options available on request.
- EMC and De Rosa used the same patterns for the frame parts. There is no evidence that at least one frame sold by EMC was built by Ugo De Rosa.
That's enough. Maybe it is worth mentioning that 50-80% of frames appearing in the net (on this forum as well) have an incorrect / incomplete description. Do you want to know more?