Hello Franck,
No, I'm not the seller. If I owned the photos I would probably never sell them. Unfortunately the whole lot of Fw. Furtinović, including photos, documents and flight logs, came into the hands of simple militaria dealers and now they are selling the items one by one only caring fot their profit
But, now to help you with the inccriptions.
#1
12. March 1944 (Nahod), Kreš? Šval?
The date of the crash is wrong as there are no known crashes on that day. According to the available Summerische Verlustmeldungen, the 15.(kroat.)/JG52 suffered three losses during March '44 - on the 10th, 11th and 23rd. The loss on the 10th March was a 100% loss, so I would rule out that one. The names written after the date are from Uffz. Vladimir Kreš and Uffz Albin Šval, probabley guessing who was the pilot in the crash. Nahod is the second name of Kreš.
#2
6.8.43 Herzogenaurach-Fürth, fighter school Nürnberg
#3
6.8.43 Herzogenaurach, Me 109 Bf 109 E, operational flight
#5
"Halz und Beinbruch" a german phrase for: "break a leg", unfortunately I can't read the signature of the pilot
#6
During .... Stuka .... our, Karakut, Krim 10.02.44