Hawk-Eye Detective and Combination Camera

Improved Model, Blair Camera Co., for 4x5" exposures on dry-plates, Boston, U.S.A., the walnut body stamped on the interior with "Patented March 29 "87, May 20 "90", with single-element lens behind three-speed shutter, knob at top calibrated from 6 to 100 feet focusing internal bellows, flap at side opening to reveal ground-glass focusing screen and storage space for three block-form double plate holders. with two plate holders each stamped in ink "Patented, May 15, "83. Removable panel at back for viewing focusing screen. Two waist-level viewfinders. The ground-glass screen was removable for use with an optional 100 exposure roll-film holder. Ex Spira Collection.