němčina:

Briefmarkenentwurf Kronprinz Otto

title QS:P1476,de:"Briefmarkenentwurf Kronprinz Otto"

label QS:Lde,"Briefmarkenentwurf Kronprinz Otto"

Toto dílo je volné také v zemích, jejichž právní řád chrání majetková autorská práva po dobu života autora a 70 let po jeho smrti.

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