Hi! I know - like the whole world for a dozen or so years
the problem is that this site
contains a lot of obvious errors ( a few simple ones ):
1) A ( left side ) mark certainly does not mean "Professional"- You can find them
on every model produced in range given by me (1980-1989); similarly to the legendary P - they are all models from years 84-86; truth is brutal - EMC did not use any markings for frames built on Columbus SL/SP, you will not find them on EM 80-86 bikes popularly ( but unofficialy ) called "Professional"...You'll find a lot of other letters - but they mean something completely different ( see my description ).
2) Multisport model did not exist - it is pure invention; M - an EMC employee probably 83-86, then ( from 87 ) M means Columbus Cromor ( EM Strada ).
3) in the 90's not even one bicycle with E series marks was made ( the invention of GITA employees ) - this series appeared only once - 1981/1984.
4) Z series dating (!): in one year EMC produced 9999 frames ? Really ? In 1981-1984 an average of 2500 frames would be produced per year ( entire E series = 9999 frames), then 9999 in 1985, then descent to level of 5000 frames per year ( series A,B, etc ). How does this work for employees at EMC ? 1980 - (start) - 7; 1981 - 18 ( average 139 frames/man per year ); 1985 - 21 ( av.476 !!! ); 1987 - 34 ( av.147 ). How does it work ? Does not work: Z series is production from summer 1984 to autumn 1986.
Thank You, Best Regards - Jacek