Hi Ian. If you are intersted in (F).123 you might like this book.
Also the composition of 2.Staffel here though it's a bit later as they would have be in Sicily in April 1941. Probably in European camouflage then and Desert in 42-43.
There is a decal sheet for 4U+ZK , a 110 in Sand-light blue, codes plain black and white rudder. The 2.Staffel eagle is on the nose.
Regards
Nick
https://www.amazon.co.uk/Adler-mit-F.../dp/380350080X
https://www.ww2.dk/oob/bestand/aufkl/b2ag123.html