DHC-3 Otter N90575 (msn 302) was delivered new to the US Army as U-1A, 58-1692, in December 1958 and later served in Vietnam. One of two Harold Hanson bought from Stockton, CA in 1974 and restored at Boeing Field. I photographed it a couple times in 1975-1976 at Boeing Field before and after Hanson sold it to Frontier Flying Service in Alaska. In December 1976 it was on amphibious floats parked in a tight spot next to Hanson's hangar. Now flies as DHC-3T, C-GMDG, with Fort Frances Sportsmen Airways at a float base east of Ft. Frances, Ontario. See http://www.dhc-3archive.com/DHC-3_302.html