One of my favorite EMC frames... massacred my optimistic assumption about not chrome plating R753 and reliability of descriptions from EMC catalogues
Built in 1988 (it should have Grand Prix sticker), very similar painting you can find on 2nd page of 1989 catalogue (bottom picture, first frame) - I don't know the code mark.
This model brake bridge (I call it Silva 3) was introduced in 1987 - first to higher models, then to Corsa and finally to Strada (since then it is impossible to identify EMC frames by this element).
Frame markings R653 and R753 were very economical - they did not contain the "seat tube length" digit and type/geo/tubes markings.
Undoubtedly frame+fork=authentic set
If you don't find "riflings" anywhere and the frame is really light - you have a beautiful unique EMC Grand Prix with chrome R753 tubes (which is "impossible" according to EMC catalogues) and very rare painting...
Isn't life beautiful?