Lot 80261 – German States, Hannover – 1860 10gr, two glass support clichés of extraordinary beauty

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.