Collotypes, which provide the finest detail of all printing methods are sometimes confused with real photo postcards.

But even collotypes will exhibit a discernible grain when magnified.

- The postal rates increased to 1d (), then to 1d ().

The printing of the photographer’s or manufacturer’s name on the back of real photos was an expensive proposition.

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.

The head on this series of stamps was known as the 'Profile Head'.

It was introduced to match the heads on coins and medals.

I have illustrated this page almost entirely with definitive stamps.

To have included the many commemorative issues that have been issued, particularly during the reign of Queen Elizabeth II, would have complicated the page.

Most old photo papers used silver in their emulsions.

As time passes this silver tends to migrate to the surface of the print creating tell-tale metallic patches.

From : Letter Rate 1d, Postcards 1d From : Letter Rate 2d, Postcards 2d From 1941 onwards, paler colours were used for d to 3d stamps. the 2d stamp was 'orange' (1940-41) then 'pale orange' (1941-50) and 'pale brown' (1950-52). The illustrations of stamps on this page have been taken from postcards in my collection and other collections.