1873 Print Gothic Hot-Air Furnace Brickwork Vintage Machine Alex M Lesley MAB1 SAI "General View of the Norris

"General View of the Norris Basin Geysers

Keywords specific to this image: Adobe

This is an original 1920 color print ad for Pillsbury products

Keywords specific to this image: Mince Pies

1873 Print Gothic Hot-Air Furnace Brickwork Vintage Machine Alex M Lesley MAB1 SAI "General View of the NorrisThis is an original 1873 halftone print of a Gothic Hot Air Furnace, made by Alex M. Lesley, 224 West Twenty third Street, New York City. The Gothic Furnace is best adapted for the application of the brickwork arrangement around the same. It consists of double walls L M, between which the air passes first before receiving its final heating. This air enters at the upper left hand corner, from an air shaft connected with the outside, so as not to drive