American Optical Company: Flammang's Catalogue Listings
American Optical Company: Henry Clay Advertising
American Optical Company: Henry Clay Research
American Optical Company: Henry Clay Sliding Bed
American Optical Company: Timeline of Important 1890s Self-Casing cameras

American Optical Company: Star View Catalogue Listing
Anthony (E. & H.T): Ascot Cycle No.1 Catalogue Listing

Anthony (E. & H.T): Clifton Camera Catalogue Listing

Anthony (E. & H.T): Marlborough References
Anthony (E. & H.T): Novelette Catalogue Reference
Anthony (E. & H.T.): Phantom Catalogue Listing
Anthony (E. & H.T.): Universal View Finder Catalogue Listing
Anthony (E. & H.T.): Victor Catalogue Listing
Blair Camera Company: Folding Hawk-Eye, No.1 & No.2 References
Blair Camera Company: Lucidograph Advertisements & Patent
Blair Camera Company: Tourist Hawk-eye

Blair Tourograph & Dry Plate Company: Tourograph Brochure

Bullard Camera Company: Folding Magazine Camera Advertisements
Butcher: Royal Mail Stamp Camera Advertisements
Disderi: CdV Image
G. Gennert: Montauk Flexo-Front Advertisement
Gibbs (William): Camera Patent and References
Gordon (attributed): Plate Holder Corner Patent
Horsman (E.I.): Eclipse Outfit Patent & Advertisements
Kozy Camera Company: Chase Magazine Camera Advert & Patent
Kozy Camera Company: Kozy Advertisements & Patent
Milburn Camera Company: Korona Hand Camera Patent
Multiscope & Film Co: Al-Vista No.5-F Catalogue Reference
Pearsall (Frank): Glass Plate Negative with Pearsall Camera​

Pearsall (Frank): Timeline - References
Pearsall (Frank): Patents
Perry Mason: Argus 12-Shot Camera Advertisement & Patent
Popular Photograph Company: Nodark Advertisement
Putnam (Franklin): Marvel Camera research and Ephemera
Quta Camera & Plate Company: Advertisements & Patent
Rochester Camera Mfg Co: The Rochester Catalogue Listing
Rochester Optical Company: Midget

Rochester Optical Company: Snappa Advertisement
Rochester Optical Company: Universal Catalogue Listing
Schaub (Jacob): Multiplying Camera Patent
Schaub (Jacob): 1983 Mike Kessler Article Excerpt
Scovill & Adams Company: Antique Oak Catalogue Listings
Scovill & Adams Company: Compact View Catalogue Listing
Scovill Mfg Company: St. Louis Catalogue Listing
Scovill Mfg Company: Waterbury Catalogue Listings
Sears, Roebuck & Co.: Background Information about their cameras

Skyshade: Shutter Advertisement (Flexo-Front)
Smith (Jas): Sunflower Patent & Advertisements
Steinheil: Group Antiplanetic Lens Catalogue Listing
Stockwell (Nathan): Camera Patent
Wilken-Welsh: Onondaga No.6 Reversible Back Listing
Wing (Harvey T.): Prototype Multiplying Camera Patent