Original roofing trade vintage catalog for AMMERMAN COMPANY, INC. Main office was located at 110 North 2nd Street, Minneapolis, MN. Manufacturers of AirXpeler exhausters, wall & roof fans, power operated direct driven. Complete specification data of all ventilating equipment for the architect and engineer. Deluxe quality. Products include BCD backward cure direct connected, GS and RC units, flue caps, lo-boy model, backward curve belted exhauster capacity table No. 9, back pressure dampers, shutters, ventilating louvers, fire dampers, stack exhauster, twin blower kitchen fan model 300, ceiling fans, overhead exhaust system fixtures, under floor for garage or welding exhaust are shown. Unbound from a large 1958 architectural catalog, this unique old sixteen page technical specifications brochure would display beautifully matted and framed. A fantastic addition to your retro roofing construction library. Pages are detached and may contain a small amount of residual glue on edge.