9449 Grumman J2F Duck US Navy Oakland NAS Airfield, USA - California Dave Welch Collection - 1938
9449 Grumman J2F Duck US Marine Corps Oakland NAS Airfield, USA - California Dave Welch Collection - 1935
UNKNOWN Grumman J2F Duck US Navy Oakland NAS Airfield, USA - California Dave Welch Collection - 1937
