Ephemera

things that are meant to exist or be used for only a short time

Ephemera are temporary written or printed matters. It covers a lot of things: trade cards, bookmarks, postcards, posters, many variants of the advertising etc.

A 1798 printed broadside advertising the availability of a stallion for horse-breeding

This term is originally used to mayfly or something transitory or short-lived.[1]

References

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  1. "ephemera". The Free Dictionary.