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I see mostly very common stamps; United Kingdom, France, a Danish one, an Australian one. These were printed in huge quantities as they paid basic letter rates.
In the first picture, there are a 1d (blue), 1 1/2 d (green) and 2 d (red-brown) stamp with the portrait of Queen Elizabeth II. These are British stamps (1952 - 1967). The red-brown one is also in the second column in the second picture.
These are called 'Wildings' for the portrait photograph used for the design. The photograph of H.M. the Queen was taken by the studio of Dorothy Wilding. They come with three watermarks, two main papers, graphite lines on the back, and three types of phosphor bars on the front of which one came in two standard widths. Most are not worth anything, some have a little value. But it requires identification of the elements I listed above.
Here is a sample of 'Wildings' overprinted for use at British post offices in Eastern Arabia.
