Essays. 1867 Penasson of Alexandria: 1pi vignette depicting Pyramid only with Arabic script and 10pa vignette depicting Pyramid only, both imperforated in green on thin paper in se-tenant blocks of four in sheetlet format, some creases, very fine, and an extremely rare showpiece. Provenance: Royal Palace Collection (Lot 86). (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Lion in front of Pyramids, imperforate in red on thin ungummed paper, top margin repaired, scarce. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Lion in front of Pyramids, in blue on thin gummed paper, block of four, cnr clipped, fresh, very fine, and an extremely scarce multiple. Provenance: British Monarchy. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Lion in front of Pyramids, in green on thin gummed paper, block of four, torn and repaired, fresh, very fine, and an extremely scarce multiple. Provenance: British Monarchy. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Lion in front of Pyramids, perf. 15 in green on thin ungummed paper, fine and scarce. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Sphinx in front of Pyramid, imperforate in mauve on thin ungummed paper, fine and scarce. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Sphinx in front of Pyramid, imperforate in yellow on thin ungummed paper, fine and scarce. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Sphinx in front of Pyramid, in blue on thin gummed paper, block of four, heavy hinge remains and thinned, fresh, very fine, and an extremely scarce multiple. Provenance: British Monarchy. (Image)

1867 Penasson of Alexandria: 1pi vignette depicting Sphinx in front of Pyramid, in yellow on thin gummed paper, block of four, tiny grease spots, fresh, very fine, and an extremely scarce multiple (4). Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: 10pa green, perforated essay on gummed paper, depicting Sphinx facing left and Pyramid, fine and scarce. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: 1pi blue, perforated essay on gummed paper, depicting Sphinx facing left and Pyramid, short perfs, fine and scarce. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: 2pi red, perforated essay on gummed paper, depicting Sphinx facing right and Pyramids, thinned, fine and scarce. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: 2pi brown, perforated essay on gummed paper, depicting Sphinx only, in circle, facing left, defective, fine and scarce. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: Imperforate sheetlet of four in brown on gummed paper, showing 10pa, 1pi and two 2pi essays of four different designs (in a different arrangement to the last lot), creases and thin spots, an attractive and very rare essay in this se-tenant format. (Image)

1867 Essays of V. Penasson: Imperforate sheetlet of four in green on gummed paper, showing 10pa, 1pi and two 2pi essays of four different designs (in a different arrangement to the next lot), creases, an attractive and very rare essay in this se-tenant format. (Image)

1867 Essays of V. Penasson: Perforated block of four in red on ungummed paper, showing 10pa, 1pi and two 2pi essays of four different designs, one thinned, an attractive and very rare essay in this se-tenant format. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: Perforated block of four in blue on ungummed paper, showing 10pa, 1pi and two 2pi essays of four different designs, an attractive and very rare essay in this se-tenant format. Provenance: British Monarchy. (Image)

1867 Essays of V. Penasson: Imperforate three se-tenant blocks of four in orange on gummed paper, showing 10pa, 1pi and two 2pi essays of four different designs (each block with values arranged differently) with all three in a composite sheetlet, some usual tiny thins, wrinkles and creases, an attractive and very rare sheetlet essays in this se-tenant format. Provenance: British Monarchy. (Image)

1867 National Bank Note Co.: 20pa essay in orange red mounted on large sunken die card, with imprint at foot "NATIONAL BANK NOTE CO. NY.", creased, very fine, attractive, and rare with an imprint. (Image)

1867 National Bank Note Co.: 20pa essay in brown on white envelope, very fine, attractive and scarce. (Image)

1867 National Bank Note Co.: 1pi essay in deep red mounted on large sunken die card, with imprint at foot "NATIONAL BANK NOTE CO. NY.", very fine, attractive, and rare with an imprint. (Image)

1867 National Bank Note Co.: 1pi essay in red on yellow tinted envelope, very fine, attractive and scarce. (Image)

1867 National Bank Note Co.: 2pi essay in rose-red on white envelope, very fine, attractive and scarce. (Image)

1869 Prevost Essays of Paris: 00pa without overprint and with an additional 20pa overprint at right and the word ÉPREUVE below design, including brown on greenish paper, brown on salmon paper, and black on white paper, fine and scarce (3). (Image)

1869 Prevost Essays of Paris: 00pa with overprint and the word ÉPREUVE below design on envelope, brown on greenish tinted paper, fine and scarce. (Image)