Stamp Catalogues - British Commonwealth

Stanley Gibbons British Commonwealth Stamp Catalogues

There are four catalogues published by Stanley Gibbons which encompass the entire Commonwealth and British Empire postage stamp issues.
The Commonwealth & British Empire stamp catalogue which covers issues 1840 - 1952 with a detailed listing of shades, watermarks etc.
The Commonwealth Simplified catalogue which covers issues 1840 - 2009 but does not list any shades or watermark variations so is more a simple check list of issues.
The King George V Commonwealth catalogue listing all issues during his reign including details of shades, watermarks etc.
The King George VI Commonwealth catalogue listing all issues during his reign including details of shades, watermarks etc.