half-plate Tintype of "Clinch Rifles"(Co. "A" 5th Ga.) as sold at auction:
I have seen another photo of this group which is more commonly found in CW histories. But this one is unique, probably unpublished until now

Photo and history
http://books.google.com/books?id=pW4oEhwvhMsC&pg=PA109&dq=%22Clinch+Rifles%22&hl=en&ei=vF5iTskawsWAB8nFqI8K&sa=X&oi=book_result&ct=result&resnum=6&ved=0CEQQ6AEwBQ#v=onepage&q=%22Clinch%20Rifles%22&f=false