1851 1Ggr black on light green corner marginal showing row number “12” in left margin, clear margins except just touched bottom right, partial blue cds that leaves most of the design free, very fine. (Image)

1853 3kr black on green pair with very wide margins except for just touching bottom left, showing parts of adjoining stamps at top and right, obliterated by circular numeral cancellation, very fresh and attractive; signed Pfenninger. (Image)

1859 2gr, wide-margined stamp tied by superb and ideal strike of the scarce Greetscyhl 31.1 cds (Aurich, Ostfriesland); a very fresh and well-preserved cover to Emden, ex Metzer. (Image)

1860 10gr, two glass support clichés of extraordinary beauty, one in a radiant green (mirror image) dated Aug 1935 with Sperati`s production annotations relating to exposure time and temperature, and an impression on thick glass in vermilion, also a small group of cancellation trials on paper, with production notes in pencil, incl. Hannover circular datestamp, Blumenthal circular, line cancels of Emden, Lehe, Ritzebuttel; a unique selection that displays the pairing of stamp and postmark. (Image)

1861 10gr two glass clichés, one in black and one in the radiant vermilion colour that Sperati preferred for optimum contrast, showing hand-painted surround and comprehensive production notes at base, specifying temperature, chemical composition and exposure duration; a very attractive pair of clichés. (Image)

1861 10gr dark olive-green, block of four in exceptionally fresh quality, wide margins on all sides, and with full original gum, upper stamps with hinge remnant and the lower pair with a tiny trace of hinge; minor gum bends, an outstanding and scarce multiple; cert. Berger (2014). (Image)