Nowadays a voter in the Netherlands receives as bulkmail a list of candidates which is spread from door to door. Addressed to the home address and send by mail a voter receives a voter’s pass. Voting was obligatory between 1917 and 1970. Not voting was punished by a fine.
Voter’s passes from that period are rare but from the early days it easily could fit in a collection of (local) postal history as the example here. This is a voter’s pass for provincial elections 1923 in the Province of Utrecht. It was send by the community where the voter lives, in this case the city of Utrecht. It was send as service printed matter free from postage, but stamped in Utrecht.
What is typical, is that the elections were held don Thursday. Today this is always on Wednesday.