Copernicus 500th Anniversary Commemorative Stamp lake placid A fascinating vintage double-sided poster

A fascinating vintage double-sided poster

and battle line at the signing of the Armistice

Em Hir Son and Kim Ren Rin

David Chiang

"Kunstschatten Twee Nederlandse Collecties Schilderijen 15de-17de Eeuw en een Collectie Oud Aardewerk" (Art Treasures Two Dutch Collections of Paintings 15th - 17th Centuries and a Collection of Old Pottery)

Copernicus 500th Anniversary Commemorative Stamp lake placid A fascinating vintage double-sided poster"From the sprk coil to the transistor the electron era commemorated in four new stamps. Stamp collecting. For the fun of it." Promotional poster for the "Progress in Electronics" stamp series showing the Marconi Spark Coil, the DeForest Audions, the Radio Speaker, the Microphone, and the Transitors. Original poster from the U. S. Mail "Your Postal Service." Condition: Fair, some folds visible