Antique post cards dating
This could go on for generations, and it is not uncommon to find the same photograph attributed to three different artists.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.When no postmark is available, the type of materials used can often aid in narrowing down the years it may have been produced in.
Early real photo postcards are small by their very nature and since most were contact printed, not enlarged, there is no visible texture.
Light energy alone, usually from the sun, reacted with the light sensitive chemicals on the paper’s surface to produce an image.
They only needed to be fixed to preserve the exposed image.
- This process was invented in 1842, but its first known use for a postcard was in 1888.
No commercial paper was needed, though eventually manufactured, as card stock could be photosensitized at home and printed out. Variations on this process were developed over the years that followed.