C-type print / chromogenic print The technical name for a colour print produced from a negative. Digital print A print produced via a computer, possibly using a combination of photography and digital manipulation, and printed directly with permanent inks on acid-free paper. Iris or G'iclee prints are forms of digital prints. The latest prints are estimated to last for around 200 years. Edition/ Limited Edition A maximum number of prints produced from a single negative. The prints are numbered with the chronological number of the edition, followed by the size of the edition. For example, 2/20 signifies print number two from an edition limited to 20. Estate print A print produced posthumously, ie. after the photographer has died, from the original negative. Estate prints are usually authenticated by a family member. Modern print A print produced some time after the photograph was taken. For example, a photograph printed in 1998 from a negative made in 1939 would be considered a modern print. These are sometimes also called later prints. See Vintage print, below. Platinum print A black and white process using platinum-based chemicals rather than silver (see silver gelatin print, below). Platinum prints produce a greater range of subtle tonal variations of grey than a silver gelatin print. Provenance A history detailing the origin and ownership history of a print. Most modern prints come directly from the photographer. R-type print A print made by the reversal process, ie. from a positive. These are sometimes referred to by their brand name, such as Cibachrome. Signed verso / recto A signature on the back of the print is denoted verso, and on the front recto. Silver gelatin print The technical term for a black and white photograph, made from a light sensitive silver compound, held to paper by a gelatin 'glue'. Toned print A black and white photograph that has been chemically treated to produce a particular effect, colour or tone. Vintage print A print made around the same time that the negative was made. In practice, this usually means within five years of the negative date. For example, a photograph taken in 1951 and printed in 1953 would be considered a vintage print.