The more I looked at this postcard the more interesting it became. A souvenir of Belgian stamps from 1905 – but are they real stamps? I’m not sure and I’m not going to scratch at them to find out. Looking at the back of the postcard, it’s clear that the outlines of the stamps are in relief. At the bottom of each stamp is a piece that can be detached, or not, saying “Don’t deliver on Sundays”
