[Dandelion Seeds], 1858 or later, Photogravure (photoglyphic engraving from a copper plate), Sheet: 15. 1 x 11. 3 cm (5 15/16 x 4 7/16 in. ), William Henry Fox Talbot (British, Dorset 1800?1877 Lacock), This experimental proof is a fine example of the capacity of Talbot's 'photoglyphic engraving' to produce photographic results that could be printed on a press, using printer's ink-a more permanent process than photographs made with light and chemicals