NY, 1866. Item #97-5432
5.5 x 3.5, wraps, 7 pp. Very light soiling, light wear, chipping, corners creased else good/very good. Contains information on how the smoke detectors work (but no illustrations), the fees and the approval from the NY Board of Fire Underwriters approving this fire detector (also known as Dion's Fire Detector). Printed on the back cover "Substitute for Fire Escapes." Early version.