Burundi Chess Masters

Do you remember WCF World Chess Champion Stan Vaughan? If not, see my earlier post -- Chess Mafia? -- for a video++ about one of the chess world's most colorful characters. His latest email informed, 'Stan Vaughan is now on a postage stamp', and attached the image shown below.

The image is apparently from delcampe.net: Burundi 2011 Chess Masters. To find out whether these four stamps are interesting to serious collectors, see COSSU: Chess on Stamp Study Unit.