Hello
The only units in Norway with Fw 190 with RVB was 9. and 12./JG 5 at Herdla. The RVB was painted on the fuselage late april 1945, and it is not likely that any of those A/C was sent to the continent. All Norwegian based FW 190 with RVB would also have the "Eismerjäger" emblem on the left cowling. Colors on the numbers would be white (9./JG 5) and blue (12./JG 5). A smal disk in the same staffel color would also be behind the balkenkreutz (IV group marking and not III group marking as expected)
Best from Norway
Olve Dybvig
www.luftwaffe.no