1937 Pins Del Valles Jornades de Julial del 36, three different 5c values, each color of center inverted, n.h., v.f., with APS certificates, also the normal set, perf. and imperf. included for comparison (Image)

Est.$500

1937 Vinebre Sofima, 5c light blue and black (River Ebre) center inverted, used in combination with government franking on cover addressed to Zumstein and Co. in Switzerland, fine-v.f., with 2008 APS certificate ("cover did not enter the mail stream") (Image)

Est.$300

1937 Vinebre Sofima, 5c rose and orange (River Ebre) horizontal tete-beche pair, centers inverted, used in combination with government franking on registered cover to France, blue manuscript crayon markings, Vinebre 12 July departure and Paris (15.7) arrival pmks on back, red censor mark on front, fine and very rare usage, with 2008 APS certificate. Also a complete set of perf. and imperf. Horizontal tete-beche pairs included for comparison (Image)

Est.$1,500

1937 Vinebre Sofima, 5c rose and black (River Ebre) horizontal tete-beche pair, centers inverted, used in combination with government franking on a philatelic cover addressed to Zumstein and Co. in Switzerland, fine-v.f., with 2009 PFC (Image)

Est.$250

1938 Tenerife, 30c carmine and pink imperf. souvenir sheet, center inverted, artist signed in margin, l.h., v.f., signed Roig, with 2002 Alex Rendon certificate, with regular perf. and imperf. souvenir sheets included for comparison (Image)

Est.$1,500

1936-38 Asistencia A Frentes y Hospitales Issue, four values incl. 25c, 50c, 1p and Guipuzcoa, each with value or inscription inverted, also Jose Antonio Primo de Rivera, 10c perf. and imperf., each with red "10 Cts" inverted (normal stamp included for comparison) n.h., v.f. (Image)

Est.$500