P=have O=don’t have it
http://www.sandafayre.com/atlas/spansa.htm
Known
as Rio de Oro before 1924, the Spanish Sahara was a province of Spain
until 31 December 1975.
When
Spanish troops were withdrawn on 26 February 1976, the country was divided
between Morocco
and Mauritania; the border was
agreed on 14 April 1976. Morocco had made her claim by the peaceful 'Green
March' in November 1975. A so-called 'Saharan Arab People's Republic' was
declared in opposition by Algerian-backed Rio de Oro guerrillas. Existing
postal arrangements are not known.
http://www.sandafayre.com/atlas/spansa.htm
Stamps
are with Morocco.
Scott: #B55-7O
Issued: 23.11.1959
Stamp Day
Inside #B55-6: Stamp on Envelope
Scott: #185-7P
(Thanks to Attilio for the scan)
Issued: 23.11.1968
Stamp Day
Inside
#185: Spain #1P(Spain)
Inside #186:
Inside
#186: Ifni #B16P
Inside
#186:
Inside #186: Spain #1015P
Inside
#186:
Inside #186: Spain #C163O
Inside #187: Stamp on Envelope
Scott: #235P
Issued: 4.4.1975
Espana '75
Inside
#235:
Wish List
Scott: #B55-7O
Sahara Western Arab Republic
Sahara Western
Arab Republic unlisted bogus issue 1996 for Chad