An image of Untitled

Unknown photographer

( – )

Untitled

Location
Not on display
Further information

The cyanotype was invented in 1842 by John Herschel. To produce a cyanotype print, solutions of ferric ammonium citrate and potassium ferricyanide are applied to a sheet of paper in a darkened room. To expose an image, the paper is placed in direct sunlight with the negative image plate sitting on top of the sensitized surface. After its exposure, the paper is washed in water. The chemical reaction that takes place gives the print its characteristic blue tone.

Place of origin
Australia
Year
circa 1900
Media
Photograph
Medium
cyanotype
Dimensions
7.5 x 10.1 cm image/sheet
Signature & date

Not signed. Not dated.

Credit
Purchased 2014
Accession number
469.2014