France- Saumur : Rick wonders: 'a local stamp or a poster stamp?' [rs]
SAURASHTRA
India- Soruth (1929-49) (see SARKARI image above)
SAYMAN ISLANDS
(bogus - as is: Aayman, Dayman, Layman, Nayman, Yayman, etc.): British Colonial Royal Wedding - frames from book "Surreal Stamps and Unreal Stickers." [ap]
SCARPANTO
(overprint on stamps of Italy): Italy- Aegean Islands- Scarpanto (1912-32)