This guide is meant to aid the collector in identifying and dating real photo postcards, and to act as a reminder that it is impossible to do so with great accuracy. A lthough real photo postcards were made in a variety of ways, they hold one identifiable feature in common. The tonalities of photos are completely continuous to the eye producing true greys, for they are created by the reaction of individual photosensitive molecules to light rather than the transfer of ink from a plate. In printed images the grey areas are usually made up of black marks that are spaced to create the optical illusion of greys.
This version of Internet Explorer is no longer supported. Please try a current version of IE or Firefox. EasyEdit Report page Share this. Real Photo postcards are Black and White photographs that are reproduced by actually developing them onto photographic paper the size and weight of postcards, with a postcard back.
The only guide to identifying and dating Photo Postcards. These postcards, wildly popular from the mids to , were the social media of the era. Much family history can be derived from the messages and images on them. This book helps you date the postcards when postmarks and written documentation is not available. This a a must for the library of:.
A real photo postcard RPPC is a continuous-tone photographic image printed on postcard stock. The term recognizes a distinction between the real photo process and the lithographic or offset printing processes employed in the manufacture of most postcard images. In Kodak introduced the No. Many other cameras were used, some of which used glass photographic plates that produced images that had to be cropped in order to fit the postcard format.