Another great photo from the past. This one is of what appears to be a Vespa club event in the early 50's. I'm not really sure what is going on here, but it is notable that all of the riders are women. At first I thought it was part of a parade of some kind, but then noting the number on the scooter's legshields leads me to think that this is part of some competition. I don't have any idea, but the whole scene just looks super cool. Note the big American cars and the jeep parked on the left side of the picture.
There is no Vespa club like this in Viet Nam.