On my main blog are a number of links to others. These were all active when originally linked but some writers have fallen by the wayside - but their blogs remain. So here is a good example of (reasonably) modern postal history from 1940, depicting usages of the Centenary set of 6.
If I can put my hands on them, I'll add some of my covers here later.
Great Britain Philately, written in 2012.
|Red X Cover prepared for the 1940 Stamp Centenary Exhibition but used (apparently in 1943) by the Red X Churches Committee, with a red postage paid postmark.|