This is a photogram created in the dark room. It is printed on photographic paper that was developed with chemicals, following the traditional (non digital) photography methods.
The paper size is 8 x 10 inches (20,3 x 25,4 cm).
This is an original, it is not a reproduction.
The image shown here is a direct scan, there was no digital manipulation.
It is signed by the author on the white back side of the paper.