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This practice was only cost effective on cards printed in large numbers; individuals and small photo studios could rarely afford to do so. While many amateur photographers numbered their cards this was most often done by larger studios.Sometimes a photographer might expose a logo onto the image or hand stamp a name to the back of the card. Numbering was an essential way of keeping tract of large inventory.We use cookies to make interactions with our website easy and meaningful, to better understand the use of our services, and to tailor advertising.For further information, including about cookie settings, please read our Cookie Policy .While today this would lead to lawsuits, copyright was uncommon and rarely enforced at the turn of the 20th century.Today there are many real photo postcards of unknown origin and date.Some companies were still printing real photo postcards in the 1970’s from negatives taken in the 1890’s.A studio sometimes grew to the point where additional photographers were hired but all the photographs produced were published with the original photographers name.

Light energy alone, usually from the sun, reacted with the light sensitive chemicals on the paper’s surface to produce an image.As time passes this silver tends to migrate to the surface of the print creating tell-tale metallic patches.Observing this shiny crust, no mater what the color, is a quick and sure way of telling if you are looking at a real photo.NOTE: There were many other photo papers manufactured in addition to those listed on this page, and even these could be made in different finishes from matte to glossy.At least 450 different real photo postcard backs can be found but as of this time there is a lack of accurate information regarding all their dates of use, or they were used in very limited quantities.

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