Golly Golly Gee Gee

One of these letterboxes is located nearby. It seems to be made from an old water service or gas cylinder, and I thought its decoration was rather unusual. Then I saw another, about 20km from here, with an uncanny resemblance around the shoes, hands, hairstyle and eyes. Maybe they're related.

Or maybe these letterboxes were immensely popular a few decades ago, like vertical venetian blinds or the drink called Orange Tang.