Trying to find information on my grandfather, Mathias Gehl, who was in the Luftwaffe

[Darrell Besser]

Dear Teresa,
Would the pictures happen to be in color? This would help decipher what unit within the Luftwaffe he was in ie., medical,Flak, payroll...
As for Collar Tab Ranks:
2 Birds - Gefreiter (Acting Corporal)
3 Birds - Obergefreiter (Corporal)
2 Birds w/ leaves at bottom of tab - Oberleutnant (1st Lieutenant)
3 Birds w/ leaves at bottom of tab - Hauptman (Captain)
2 Birds surrounded by wreath - Obersleutnant (Lt.Colonel)
3 Birds surrounded by wreath - Oberst (Colonel)