Bf.109 Werknr 12854 or 8254

[Hans Nauta]

Dear researchers,

On 3rd July 1941 a Bf.109F-2 of I/JG1 was damaged for 15% while taxiing on Bergen (also filed as Bergen am See in German records) airfield, Holland.
I've two possible Werknr's of this aircraft: 12854 and 8254 which are very similar to each other. Unfortunately I lost my references to the primary sources of these two Werknr's.

Perhaps somebody can shed a light on this?

Thanks in advance,

Hans Nauta