The Crown Colony of British Guyana existed from 1914-1966. Since then it has been known as the independent nation of Guyana with its capital in Georgetown. It is situated on the northern coast of South America. The British developed the territory for sugarcane plantations. However, since the late 19th century, the economy became more diversified. In May 1966, Guyana became independent of the United Kingdom.
British Guyana is famous amongst stamp collectors for its early postage stamps. Some are considered to be amongst the rarest and most expensive stamps in the world. The British Guyana 1c magenta stamp from 1856 was sold in 1980 for $1 million. In 2014, the 1c magenta was sold for $9.5m at auction in New York, which is a world record. Only one specimen of this stamp is known to exist. It has broken the world record price for a single stamp auction price on each of the last 4 times that it was sold. It is the only major postage stamp ever issued which is not represented in Britain’s Royal Philatelic Collection.

1889
Sailing Ship Series
SG # 194
Used (Hinged)
1890-1901
Sailing Ship Series
SG # 213
Used (Hinged)
SG # 214
Used (Hinged)
1900-1903
Sailing Ship Series
SG # 235
Used (Hinged)
1907-1910
Sailing Ship Series
SG # 253
Unused (Hinged)
1913
King George V & Sailing Ship Series
SG # 259
Used (Hinged)
SG # 260
Used (Hinged)
SG # 261
Used (Hinged)
1921 – 1927
King George V & Sailing Ship Series
SG # 274
Unused (Hinged)
1931
Centenary of County Union Series
SG # 284
Unused (Hinged)
1934
Various Scenes Series
SG # 289
Used (Hinged)
SG # 290
Used (Hinged)
SG # 291
Used (Hinged)
SG # 293
Used (Hinged)
1937
Coronation Series
SG # 305
Used (Hinged)
1938
King George VI Series
SG # 308
Used (Hinged)
SG # 309
Used (Hinged)
SG # 310
Used (Hinged)
SG # 311
Used (Hinged)
SG # 313
Used (Hinged)
1949
Universal Postal Union Series
SG # 324
Unused (Hinged)
SG # 325
Unused (Hinged)
SG # 326
Unused (Hinged)
SG # 327
Unused (Hinged)

1954
Queen Elizabeth II Series
SG # 331
Used (Hinged)
SG # 332
Unused (Hinged)
SG # 333
Unused (Hinged)
SG # 334
Used (Hinged)
SG # 335
Unused (Hinged)