Original heating trade vintage catalog for SERVEL COMPANY. Manufacturers of Air Conditioning Evaporative Water Coolers. All-Year Air Conditioners. Model DE, DC, EB-72-EG and EB-RG illustrated details and specs provided. Heat and cool with gas and offer special advantages to the home builders. Disbound from a large 1956 home cooling and heating catalog, this unique old four page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library. Pages are detached and may contain a small amount of residual glue on edge.