This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Tristan und Isolde. Briefmarkenbeschreibung Serie Nothilfe mit Darstellungen aus den Werken von Richard Watgner Series for social help with pictures of the work of Richard Wagner Ausgabepreis Reichspfennig First Day of Issue Erstausgabetag November MichelKatalogNr Deutsches Reich edited by NobbiP Kolb for the Reichspost of