I have opportunity to buy these shell casings,found near Kaamanen Luftwaffe Airfield in Northern Finland.Seller does not know exactly what shells are they(Flak casings i believe?).Diameter about 30mm,lenght of the cases are 25cm.Laquered iron cases.
Here is pictures(sorry for poor pictures,but these are only ones i got):
Here is pictures(sorry for poor pictures,but these are only ones i got):