Switzerland, Neuchatel - 1851 Poste Locale 5c, celluloid cliché in dark vermilion with reversed image without the central cross, an important documentation of Sperati’s two-stage printing process (resembling the printing of the original stamp), dated “7/49” and showing other manuscript production notations. (Image)

Switzerland, Neuchatel - 1851 Poste Locale 5c, cliché on celluloid in opaque grey and with reversed image, an important documentation of Sperati’s two-stage printing process for this issue, dated “7/49” and showing rich manuscript comments about the reproduction process and the use of natural and artificial light. (Image)

Switzerland, Neuchatel - 1851 Poste Locale 5c, glass support cliché of the inner cross outline in red, with some handwritten technical comments at base, an extremely rare, radiant, and eccentric production from the master forger. (Image)