This is an image of a nature print of a fern by Alois Auer, created in the mid-1800s, offered via Wikimedia Commons. http://en.wikipedia.org/wiki/File:Nature_print,_Alois_Auer_.jpg




This is an image of nature printed North American currency by Benjamin Franklin, offered via Wikimedia Commons. http://en.wikipedia.org/wiki/File:Benjamin_Franklin_nature_printed_currency_sheet_1779.jpg

The process of nature printing uses the desired subject itself (for example: leaves, flowers) to create a pressure imprint on a surface then used to make prints.