National boilers, radiators, and specialties: catalog no. 26 (1920)
National Radiator Company · National Radiator Company · leaf 64
et out of order. perishable or intricate parts No automatic airvalve now on themarket has given asgood results undercontinuous usage. It is manufac-tured from an ex-cellent quality ofsteam metal and allparts finished on alathe to insure cleanwaterways. Inside ViewWith Vacuum Attachment A *•*:…
