http://www.guyana.org/features/guyanast ... er110.html

provenance:
Andrew Hunter (1856–1873), original recipient of the mailed stamp;
Louis Vernon Vaughan (1873);
Neil Ross McKinnon (1873–1878);
Thomas Ridpath (1878);
Philipp de la Rénotière von Ferrary (1878–1920; purple trefoil on reverse);
Government of France (1920–1922);
Arthur M. Hind (1922–1933; manuscript “H” on reverse; cloverleaf "AH" handstamp on reverse);
Ann Hind Scala (1933–1940; perhaps a seventeen-point star handstamp on reverse used to obscure the cloverleaf of her husband);
Frederick Trouton Small (1940–1970; comet handstamp on reverse; also initialed in pencil “FK” by his agent Finbar Kenny);
Irwin Weinberg and Associates (1970–1980; pencil “IW” on reverse);
John E. du Pont (1980–2014; pencil “JEdP” on reverse)
P.S. John du Pont, l'ultimo proprietario, è morto in carcere nel 2010. Era stato condannato nel 1997 per l'omicidio di un lottatore. Non vedendo comparire il francobollo, si era temuto che tra dispute per l'eredità e altri impicci, fosse andato perduto