My mother was a Northwest Orient flight attendant from 60' through 77'. All international flights, mostly to Japan, and all over SE Asia. She flew on 720s, 707s, and mostly 747s. She's got lots of stories. I still have a bunch of Northwest Orient glasses, flatware, and other items from the planes that she gave me.
These aren't my mother, but she has tons of pictures of her wearing this outfit. They used to have an all red one too with an equally ridiculous hat.