http://forum.12oclockhigh.net/archiv...p?t-14677.html
This wheel has been spinning here before. This looks be a He 111 P (no motor air intake this side)
Early exmples known are T5+AU, T5+BU etc. then this should be Stab.III Gruppen - but of course is nonsense.
I have some S13+xx, many cases of S17+M__ and list in post above clearly indicates possiblility of there be more codes from S8 to S12, then S14 to S16.
So (S)15+MC (indivital letter C) be interesting item, also its RLM 02 overall suggest RLM or training use..