Brown’s Patent Double Cone Ventilating Damper Advert [Unrecorded Reconstruction-Era Broadside]
New York and Chicago: O. R. Briggs & Co., 1868. HISTORICAL SIGNIFICANCE --Issued just three years after the conclusion of the American Civil War, this broadside exemplifies the wave of domestic engineering solutions that emerged during Reconstruction. Rising post-war coal and wood prices created an anxious consumer market highly receptive.....