Historia zapisana w obrazie. Wydarzenia Grudnia ’70 z perspektywy twórców nieoficjalnych znaczków i kartek pocztowych z lat osiemdziesiątych XX w
In the eighties, when the freedom got limited again by the introduction of the martial law, the activity of underground publishing houses was developing dynamically. Not only were there magazines and books published, but also other materials, including stamps and postcards. Some of them commemorate the events that took place in December 1970. This article is an attempt to identify the circumstances of the creation of such materials, as well as to indicate the most highlighted motifs in the context of the December 1970 protests.