Markings + codes of Bf 109 + Legion Condor

[olefebvre]

Having a quick look at my notes Bertas serials ran in the high 50s up to 6o56 for sure, from then on there was a mixture of both C and D. And frankly from my studies i doubt they the C and D were given separate serial blocks.

As far as the B-2 or B-1 goes i haven't seen B-2 being mentionned on official papers so far. Maybe it was used at the unit level by the mechanics to distinguish between the two variants, but neither the RLM nor Mtt seem to have used such a terminology.