Thanks for posting Eddie! Your postings are the highlight of the day when occurring!
This one..
http://cgi.ebay.de/ws/eBayISAPI.dll?...m=200094488433
....is not an F but a G. Probably a G-2. From JG 54 loss list I only find G-2s lost by 5. Staffel in 1943.No G-4 or G-5.
A picture of what I believe is the very same 109 is found on p.96 in Jerry Scutts' book "JG 54, Aces of the Eastern Front". Again captioned as an F, but also as belonging to III Gruppe. Both informations are apparently wrong in the book! (Photo in book from Creek)