Each "article" in this category is a collection of entries about several stamp issuers, presented in alphabetical order. The entries are formulated on the micro model and so provide summary information about all known issuers.

See the :Category:Compendium of postage stamp issuers page for details of the project.

Compendium of postage stamp issuers (Sm–So)

Smirne (Italian Post Office)

Compendium of postage stamp issuers (Sm–So)

Dates 1909–1911

Currency 40 paras = 1 piastre

Refer Italian Post Offices in the Turkish Empire

Smyrne (Russian Post Office)

Compendium of postage stamp issuers (Sm–So)

Dates 1909–1910

Currency 40 paras = 1 piastre

Refer Russian Post Offices in the Turkish Empire

SO 1920

Refer East Silesia

Solomon Islands

Dates 1975–

Capital Honiara

Currency 100 cents = 1 dollar

Main Article Postage stamps and postal history of the Solomon Islands

Includes British Solomon Islands

Somalia

Under UN control with Italian administration 1950–60. Became an independent republic in 1960 and was enlarged by addition of Somaliland Protectorate.

Dates 1950–

Capital Mogadishu

Currency (1950) 100 centesimi = 1 somalo

(1961) 100 cents = 1 Somali shilling

Main Article Postage stamps and postal history of Somalia

Somalia (British Administration)

Dates 1950 only

Currency 100 cents = 1 shilling

Refer BA/BMA Issues

Somalia (British Military Administration)

BMA Somalia.

Dates 1948– 1950

Currency 100 cents = 1 shilling

Refer BA/BMA Issues

Somalia (British Occupation)

Refer East Africa Forces

See also Somalia (British Administration); Somalia (British Military Administration)

Somaliland Protectorate

Dates 1904–1960

Capital Hargeisa

Currency (1904) 16 annas = 1 rupee

(1951) 100 cents = 1 shilling

Main Article Postage stamps and postal history of British Somaliland

Includes British Somaliland

Soruth (Saurashtra)

Stamps of Soruth (Saurashtra) were at first issued in Junagadh only but later were extended to include the Saurashtra Union of Jasdan, Morvi, Nawanagar, Soruth and Wadhwan. Stamps of the 1929–1949 period were overprinted SARKARI.

Dates 1864–1949

Capital Junagadh

Currency 12 pies = 1 anna; 16 annas = 1 rupee

Refer Indian Native States

Soudan

Refer Sudan

South Africa

Dates 1910–

Capital Pretoria

Currency (1910) 12 pence = 1 shilling; 20 shillings = 1 pound

(1961) 100 cents = 1 rand

Main Article Postage stamps and postal history of South Africa

South African Republic

Dates 1869–1902

Capital Pretoria

Currency 12 pence = 1 shilling; 20 shillings = 1 pound

Refer Transvaal

South African Territories

Main Article Needed

Includes Bophutatswana; Ciskei; Transkei; Venda

South Arabian Federation

Dates 1963–1968

Capital Aden

Currency (1963) 100 cents = 1 shilling

(1965) 1000 fils = 1 dinar

Refer Aden Protectorate States

South Australia

Dates 1855–1912

Capital Adelaide

Currency 12 pence = 1 shilling; 20 shillings = 1 pound

See also Australia

South Bulgaria

Dates 1885 only

Capital Plovdiv (Philippopolis) Currency 40 paras = 1 piastre

Refer Bulgarian Territories

South China (People's Post)

Dates 1949 only

Currency 100 cents = 1 dollar

Refer CPR Regional Issues

South East Saxony (Russian Zone)

Dates 1945–1946

Capital Dresden

Currency 100 pfennige = 1 mark

Refer Germany (Allied Occupation)

South Georgia

Dates 1963–1980

Capital Grytviken

Currency (1963) 12 pence = 1 shilling; 20 shillings = 1 pound

(1971) 100 pence = 1 pound

Refer South Georgia & South Sandwich Islands

South Georgia (Falkland Islands Dependencies)

Stamps of Falkland Islands overprinted SOUTH GEORGIA.

Dates 1944–1946

Capital Grytviken

Currency 12 pence = 1 shilling; 20 shillings = 1 pound

Refer Falkland Islands Dependencies

South Georgia & South Sandwich Islands

A continuation of the South Georgia issues but with the inscription changed to acknowledge the South Sandwich Islands as part of the same territory. The South Sandwich Islands have never had any permanent inhabitants.