William Henry Fox Talbot: Dandelion Seeds. Photogravure, 1858 or later. From the Met:
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. Like Talbot's earliest photographic examples, the image here was photographically transferred to the copper engraving plate by laying the seeds directly on the photosensitized plate and exposing it to light, without the aid of a camera.Tangentially related: Giovanni Corvaja's brooch of gold and platinum wire reminds me of dandelion seeds.