Wet Collodion Print - A photographic process that involves employing a glass photographic plate coated with iodized collodion and dipped in a silver nitrate solution immediately before
use.
http://www.largeformatphotography.info/forum/showthread.php?60804-Wet-Plate-Collodion-Photography-Workshop-April-16-17-Washington-DC
Cyanotype - is a photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ammonium iron(III) citrate and potassium ferricyanide.
http://www.tino.ca/index.php?/photography/blue/
Gum Bichromate - photographic printing process based on the light sensitivity of dichromates. It is capable of rendering painterly images from photographic negatives.
http://www.alternativephotography.com/wp/negatives/gum-and-negatives-with-a-twist-of-francais
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