The most reliable method of differentiating the two is with a magnifying glass.A printed card viewed through a glass will display a series of dots used to create the image that are lacking in a RPPC.constraint Topic: Theaters Place Paris Remove constraint Place: Paris. Although the world's first picture post cards date from the 1860s to the mid-1870s, post cards , as we know them, came .16 04 2003 - When you think of what's on the back of a postcard one usually thinks of .Postcards are collected by historical societies, libraries and genealogical societies because of their importance in research such as how a city looked at a particular time in history as well as social history.
The Tichnor Brothers Collection contains approximately 25,000 office proofs of postcards of the United States published by the Boston firm Tichnor Brothers Inc.
Some are attracted to the postcards themselves, then narrow down their interests.
Others are interested in something in particular, such as ballet, then decide to collect ballet-related postcards as a way to augment their interest in ballet.
Stamp boxes on printed cards also offer dating clues.
The Tichnor Brothers Collection: Approximately 25,000 postcards that are office .