| /ABNC die proof in the issued color on India paper, sunk on to cream stock card. Slight wrinkling of the India paper where not fully sunk.
| /Full sheet with file number (263) and Waterlow imprint to base. Provides a clear visualisation of the plate format and the five types, plus all the listed flaws. A small amount of separation.
| /Seebeck 13c Olive envelope from the 1898 Greater Central American Republic issue, printed on bluish grey wove. La Libertad 27th January 1899 CDS, pencil score through indicium. Large oval forwarder's mark to reverse, New York transit mark and Bremen receiving mark.
| /ABNC archive progressive die proofs with blank value tablet. Designed as consular service stamps in 1947, the fiscal issues were overprinted in a range of values for postal use in 1951. On India paper mounted to Index Copy cards. Unique.
| /Very undercatalogued in Scott, about right in SG, the Costa Rica SCADTA stamps were handstamped in very low numbers (ignore the image in Scott which shows a false machine cancel - the Costa Rica overprints were all handstamped, except the 30c which was also machine stamped in Berlin). There were only 50 overprints of the 2, 3 and 5 peso high values.
| /First Flight Colombia-Europe via Ascension and Africa airmail cover with Correo Aero and Transoceanico handstamps, coupled with large Primer Vuelo Intercontinental 'map' cachet to reverse. Open at sides.
| /Large format Sucre die proof. ABNC 'F' number penciled to reverse. Light indentations on the vignette guide marks.
| /ABNC die proof of General Santander, issued in 1943. India paper die sunk on to cream stock card. Small tear to left-hand edge of card, not affecting the proof.
| /Security punched, intermediate plate proofs on thin gummed paper from the Waterlow archives, omitting the vignette of General Ballivian. Fresh.
| /Gutter proof pair of the 1949 printing, sun with straight rays watermark. The scarcest variety of this printing. GJ 788PE. Light fold to center gutter.
| /Broad C in Centavos Escudito with no accent on U variety, showing the partially worn plate. Four margins, close at bottom left, with Buenos Aires CDS dated 15th August 1863.
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