ok, Lancaster PB290 was a Mk.III as that article states, lost on a raid to Giessen on the night of 6/7 December 1944. She belonged to 463Sqn and was one of the 8 lost of the 255 lancasters that hit Giessen that night........
attached is a a picture of the closest relitive of PB290 that i have a picture of, Mk.III (PB156).........