I have been working with old box cameras, black and white film and double/multiple exposures. I have posted several on my different sites and blogs. Below is an example and another can be found at: Bethlehem Double Exposure With Box Camera – Variations.
Feed mills have unique features and configurations and are fun to photograph. Below is a series I took last year in the area north of Hagerstown, Maryland. Four of the mills were old and no longer in use, but shared the same configuration. To show the evolution of design, I also took a series of a modern mill.
The Huber Breaker is one of the last coal breakers in PA (I am aware of only one more in the state.). A coal break is where coal was broken down, waste rock removed and the coal graded into different sizes. It has been abandoned for a number of years and makes for a very interesting photographic subject. There are efforts being made to preserve this site.