gum dichromate photography
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Images below were taken in Savannah, Georgia with a digital camera. Ordinary, plain looking houses and office buildings interest me. They seem to be everywhere, waiting to be appreciated for their muted poetic visual quality. Exploring the humble, overlooked and forgotten structures of Savannah is best done on a bicycle. Meandering the neighborhood streets and lanes allow one's eye to wander about. Little treasures are everywhere. You find houses that appear to be unchanged for decades. Buildings remembered as a child still stand. Unlike Atlanta, so much continues to exist that it forms a reassuring familiarity. They were printed using the 19th century non-silver photo process known as gum dichromate. Layers of red, yellow and blue were overprinted to achieve a full color image. Monochrome and duotone prints can also be made. More about the process here.

casein dichromate photography

Images below were taken in and around Decatur, Georgia with a 35mm pinhole camera. They were printed using the 19th century non-silver photo process known as casein dichromate. It is similar to gum in process but uses a milk protein instead to carry the image and pigment. The original photos were black and white, but reworked to create duotone images. 

More information about historic and alternative photographic techniques used can be found at alternativephotography.com