(Technically not "395" like when this display began - Now there are over 440 "face different" Machin Heads shown on this beginner page. Also - it should be noted that colors are not exact, this display is just representative of all the obvious varieties, that's all.)
* Try this - use "F-11" to change to Full-Screen mode for an even larger view.
Some very useful Great Britain Machin Head links:
Machins Made Easy by Roy Simpson - and the Machin Mania Blog
Great Britain Machins by AdminWare Corp by Robin Harris
Simple Machin checklist by Bob Hunt
Darth Stamp - the Machin Definitive by Dave Arthur