We mustn't forget the Trim. There are 2 main types and plenty of variations in-between as well as different sizes. This is a classic UTR bag. The bags were designed in the late 1950s and early '60s respectively and were an Hermes staple, the examples below are from 1973 & 1999
Trim I without gusset (photo credit 1st Dibs)
Trim II with gusset (photo credit Paddle8)

Trim I without gusset (photo credit 1st Dibs)

Trim II with gusset (photo credit Paddle8)
