|Mini Sheet 81st anniversary of the Katyn massacre in catalogues|
|Colnect codes:||Col: PL-PPS 2021-009-011KB|
Mini Sheet is square format.
Also in the issue Poland : Moj Znaczek:
Data entry completed
|Mini Sheet 81st anniversary of the Katyn massacre in digits|
|Country:||Personalized and Private Mail Stamps|
|Emission:||Personalized - Private|
|Face Value:||A No Face Value|
Mini Sheet 81st anniversary of the Katyn massacre it reflects the thematic directions:
An anniversary is the date on which an event took place or an institution was founded in a previous year, and may also refer to the commemoration or celebration of that event. For example, the first event is the initial occurrence or, if planned, the inaugural of the event. One year later would be the first anniversary of that event. The word was first used for Catholic feasts to commemorate saints. Most countries celebrate national anniversaries, typically called national days. These could be the date of independence of the nation or the adoption of a new constitution or form of government. The important dates in a sitting monarch's reign may also be commemorated, an event often referred to as a "Jubilee".
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