French Guiana

French Guiana, or Guyane Française, was a French colony in northwest South America. It is now a part of France.

All 19th Century issues have been forged.

Also in 1892, the 15c overprint was additionally surcharged "0.05" and "DEC. 92."  File:Fr Guiana dec surch.jpg|1887 5c on 2c December surcharge File:Fr Guiana diag ovpt.jpg|1892 35c value File:Fr Guiana 20c type Groupe.A.webp|1892 20c type Groupe 
 * In 1886, two different 2c French colonies general issues were surcharged Déc. 1886. / GUY. FRANÇ. and 0f05. Dates on this and following issues are in different sizes.
 * In 1887, four surcharges on French Colonies stamps were issued now headed Avril 1887. and a short line over GUY. FRANÇ. and new values.
 * Also in 1887, two similar "5c" surcharges headed DÉC. 1887. were issued.
 * In 1888, two surcharges were similarly surcharged "5" or "10", headed with Février 1888.
 * In 1892, French colonial stamps were overprinted GUYANE. diagonally, with imperf designs and the perfed type Alphée Dubois stamps.
 * In 1892-1904, type Groupe designs for the colony were issued, inscribed GUYANE. Forgeries of this series also exist. See: Hirschberger forgeries

 File:Fr Guia 2c anteater.A.webp|1905 2c anteater definitive File:Fr gui palm plantation.jpg|1926 2f palm plantation File:Fr Guia 10 on 50c.jpg|1912 "05" on 50c surcharge File:Fr Guia 005 anteater surch.jpg|1922 0,05 on 15c surcharge File:Fr Guia.4c archer.jpg|1929 4c definitive File:Fr Guiana 1f canoe.jpg|1938 1f definitive file:Fr Guia 1940 10f air.jpg|1933 10f airmail File:Fr Guia 37 exhib.jpg|1937 30c Paris Exhibition 
 * In 1905-28 three pictorial definitive designs were issued, now inscribed GUYANE FRANÇAISE.
 * In 1912, "05" and "10" surcharges on type Groupe stamps were issued to use up old stamps.
 * In 1915, 10c definitives with a large or small red cross and surcharged "5" or "5c" were released as the country's first semipostals
 * In 1922-27, various surcharges on the pictorial definitives were released.
 * In 1929-40, three new pictorial definitive designs were issued.
 * In 1931, the Colonial Exhibition set was issued, the first of the colonial omnibus sets.
 * In 1933, the first airmails were issued showing a flying boat seaplane over the town of Cayenne.

 File:Fr Guia Vichy vocationl.jpg|1942 Vichy airmail semipostal File:Fr Guia arms.40c.jpg|1945 40c arms of Cayenne File:Fr Guia 60c defin engr.jpg|1947 60c beach scen definitive File:Fr Guia 1947 toucans air.jpg|1947 200f toucans airmail 
 * Beginning in 1941, various Vichy issues with semipostals and airmails were released in France but never sold in French Guiana. This included values with "RF" removed from earlier designs.
 * In 1945, a series with the full arms of Cayenne was issued.
 * In 1947, an engraved pictorial definitive series was released, including airmails.
 * From about that time, after becoming a department of France in 1946, French Guiana began using French stamps.

T.A.G. (Transportes Aériens Guyanais) airmail issues
In 1921, Transportes Aériens Guyanais (T.A.G.) and apparently based in St. Laurent du Maroni, obtained the airmail franchise for the country including service to overseas destinations. Airmail still required French Guianan postage. T.A.G. stamps were all imperf and all issued in 75c denominations, used in multiple where needed. They were either cancelled with AVION or in pen. Potentially, all stamps could have been forged.

 File:Fr Guia TAG comet.jpg|75c red on bluish comet design on piece File:Fr Guiana TAG helmet.A.webp|75c black on bluish winged helmet design; "T.A.G." is always crookedly placed File:Fr Guia TAG winged shield.jpg|75c black on salmon winged shield design File:Fr Guia TAG Mercury.jpg|75c black on gray(?) Mercury head design 
 * A stylized comet design (St. Laurent du Maroni Issue) was issued in two different colors on different colored papers, inscribed "75" and "TAG". Each had also part of an oval control stamp struck on its face.
 * A Mercury's winged helmet design in black on 3 different colored papers was issued, inscribed "T.A.G." and "0.75".
 * A winged shield design was issued with "TAG" at top and "POST / Aerienne" at bottom. Also issued was a head of Mercury design inscribed "TRANSPORTS / AÉRIENS / GUYANAIS / 0.75", These are printed in black on various colored papers.

Postage dues
 File:Fr Guia 5c ovptd due.jpg|1925-27 5c overprint File:Fr Guiana ovpt due a perc.jpg|1925-27 1f on 20c surcharge File:Fr Guia Palams due.jpg|1929 10c value file:Fr Guia 3f art due.jpg|1947 3f value 
 * In 1925-27, stamps of France were overprinted GUYANE / FRANÇAISE.
 * In the same period, surcharges were also issued, with an additional "à percevoir" below the new value.
 * In 1929, a set featuring Royal Palms (centime values) or a standing girl (franc values) was issued.
 * In 1947, an engraved set with native art was issued.