Yt D7 is for: Local Letter, UK Letter, Europe, Local Large, International and UK Large
Possible face values:
Local Letter up to 100 g (initial value: 46 p)
UK Letter up to 100 g (initial value: 56 p)
Europe up to 20 g (initial value: 62 p)
Local Large up to 100 g (initial value: 70 p)
Intl Letter up to 20 g (initial value: 82 p)
UK Large up to 100 g (initial value: 91 p)
