Hi Jacek,
this is coming my way.
Let me see if I can get this right:
G - EMC quality control man
8 - size 58
E 2022 - Professional from 1981
Other queues pointing to early model: seat stay caps, BB cable routing on top, derailleur hanger has holes in it, decals applied.
How did I do?

Also, based on serial number can you tell when exactly in 1981 it was made (as in month/season)?