Kann mir jemand etwas über die Einheit/den Rang meines Urgroßvaters sagen?

[https://en.wikipedia.org/wiki/Ranks_and_insignia_of_the_Luftwaffe_(1935%E2%80%931945)](https://en.wikipedia.org/wiki/Ranks_and_insignia_of_the_Luftwaffe_(1935%E2%80%931945))

looks like he was an Obergefreiter in the Luftwaffe

obergefreiter of the luftwaffe / airman third class of the air force. the color of his kragenspiegel / patch at the collar indicates the branch of service. looks like a light color like possibly yellow or light green.