(Circa 1920) Large blue 'Telegrafos de Costa Rica Cierre Oficial' TELEGRAPH SEAL with blank space for number, a fine unused block of four. Uncommon. (Mena #TS1) [US5] (Start Price = £16.00)

Collection of mint and used Aviation themed issues on 3 Prinz stock sheets. SG164 - mint small h/r (Gum creases) & f.u., SG199-201 & 508-509 - mint small h/r (Various faults), SG198, 199, 201, 203, 204, 206, 507-509, 511 & 512 f.u., SG228-230 - mint small h/r., SG228 & 230 f.u., SG238-241 - mint med h/r., SG238-239 - used (Tone perfs)., SG244-247 - mint med h/r (SG244 - 1c small thin)., SG245 & 247 - f.u., SG249-253 - f.u., SG266 & 269 - f.u., SG302 - f.u., SG394 & 396 - f.u., SG626, 715, 778 & 1054 f.u., SG776 - unused no gum., SG1439-1440 & 1478 - f.u., SG1599-1608 - (5c, 50c & 55c u.m. The rest unused no gum., SG1599-1608 - f.u. (Missing SG1440 - 10c and SG1441 - 20c)., SGE031, E1136 & E1137 - f.u., SGE1135 - u.m., and Officals O172 - mint part o.g. (Thin), O218 - mint small h/r., O214 - f.u. and a space filler 10c Red. (Start Price = £11.20)

85c violet 'Opening of La Sabana Airport' issue a fine mint block of eight each stamp with SPECIMEN overprint in red. Ex ABNCo. Archive. (SG 254) [US2] (Start Price = £8.80)

GUANACASTE : Stampless official cover with circular 'Jefetura Politica Y Comandancia Cantonal Canton de Tilaran Provincia de Guanacaste C.R.' official cachet in black and CORREOS DE TILARAN GUANACASTE cds in blue. Addressed to SAN JOSE. [US5] (Start Price = £6.40)

Stampless official cover with large oval 'Agencia Principal de Policia SARCHI NORTE' official cachet and SARCHI DE GRECIA cds both in blue. Addressed to SAN JOSE. [US5] (Start Price = £6.40)

Stampless official cover with two strikes of circular 'Agencia Principal de Policia SAN RAFAEL DE ALAJUELA' official cachet in purple. Addressed to SAN JOSE. [US5] (Start Price = £6.40)

Stampless official cover with OFICINA DE CORREOS DE ESPARTA cds in purple. Addressed to SAN JOSE. No other markings. [US5] (Start Price = £4.00)

Stampless official cover with circular 'Junta Provincial de Proteccion a la Infancia CARTAGO C.R.' official cachet in blue and CORREOS CARTAGO C.R. cds in purple. Addressed to SAN JOSE. [US5] (Start Price = £6.40)

Stampless official cover with somewhat blurred circular 'Agencia Principal de Policia de Pavas Provincia de San Jose C R' official cachet and PAVAS cds both in purple. Addressed to SAN JOSE. [US5] (Start Price = £4.00)

Headed 'Agencia Principal de Policia Quepos' stampless official cover with circular 'Agencia Principal de Policia QUEPOS Costa Rica' official cachet and ADMINISTRACION DE CORREOS DE QUEPOS cds both in purple. Addressed to SAN JOSE. [US5] (Start Price = £6.40)

10c red 'Cocos Island' OFFICIAL issue with 'CORREOS 1947' ESSAY overprint in red INVERTED, fine mint. Scarce. (As SG 431, Mena #E254b) [US2] (Start Price = £15.20)

Cover franked with 1952 5c blue & 10c green (SG 507 & 509) tied by GRECIA cds. Addressed to SAN JOSE with fine strike of boxed 'DISTRIBUIDOR No.2' marking alongside. [US5] (Start Price = £6.40)

GUANACASTE : Cover franked on reverse with 1952 15c carmine (SG 511) tied by CORREOS DE COSTA RICA 3. OFICIAL DE LIBERIA cds with second strike on front. Addressed to SAN JOSE with fine strike of boxed 'DISTRIBUIDOR No.17' marking on reverse. [US5] (Start Price = £8.00)

Stampless official registered cover with circular 'Junta de Proteccion Social Administrator CIUDAD CORTES' official cachet in purple with official signature alongside plus PUERTO CORTES cds and black & white registration label. Addressed to SAN JOSE with arrival cds on reverse. [US5] (Start Price = £6.40)

Blue undenominated 'Juan Mora Fernandez 1825' Official postal stationery card (the design being the top portion of the 1943 1c & 10c definitive issue SG 332 & 342) with 'Asamblea Legislativa, San Jose' heading at top left. Sent locally within SAN JOSE with SAN JOSE SELLADOR cds and ASAMBLEA LEGISLATIVA BIBLIOTECA official cachet in purple. Uncommon. [US5] (Start Price = £8.00)