This is a gum and Cyanotype. The pigment stained the paper a bit. My last day in New York I went to the Empire state building. It was cloudy and cold, so no one wanted to go, and I had almost the entire observation deck to myself. Of course you couldn't see much up there in the clouds but white, and few things straight almost down. I stayed up there for about 3 hours shooting whenever there was a break in the clouds. This image looks north toward Bryant Park, the two lighter buildings in the foreground jut up from the sides of the park. The lighting was amazing from varying clouds.