Bromoil Object View

Support 
The primary support is bromide paper, a fiber based silver gelatin developing out paper. Heavier weight papers with smooth surfaces were recommended for best results when printing. Because the process relied on the swelling of gelatin in water, papers containing hardeners or an overcoat could not be used. As bromoil printing gained popularity, manufacturers began to produce special papers. 
Image: Color/Tone, Quality 
Bromoil originally used greasy lithographic inks until manufacturers began to produce pigment-based inks (similar to lithography inks) specifically for the process. A variety of colors, which could be mixed with one another, were commercially available. Prints are typically monochromatic. Rarely, two or more colors were applied to a single print. Ink was applied to a wet gelatin relief with high quality brushes. The resulting images are characterized by their soft appearance and photographic tonal range. Pigment particles may visible without magnification. 
Formats/Mounting 
Because bromoil prints could be made via contact printing and enlargement, prints will be a variety of sizes. Prints may be mounted to a secondary support.
Finishing Techniques 
The bromoil process allowed printers a large degree of control over the final appearance of the image. Overall image quality could be manipulated by a variety of inking techniques. Detail and corrective retouching could be achieved by removing pigment by blotting with paper or a sponge or applying benzene with a cotton swab. Highlights and detail were added or enhanced with sharp tools such as scalpels. Irregularities could be retouched with watercolor or carbon pencils. 
Information Written or Printed on Object 
This process was primarily used by artists. Prints may be signed, titled, or dated.