Original industrial trade vintage catalog for SEALOL CORPORATION.  Main office and plant was located at 45 Willard Avenue, Providence, RI.

Manufacturers of The Balanced Pressure Seal. Products include an efficient balanced pressure, rotary type fluid seal of compact design. Has numerous product images with detailed descriptions, uses, applications, dimensions chart and specifications provided.  Unbound from a large wartime 1945 engineering designer catalog, this unique old four page technical brochure would display beautifully matted and framed. Awesome cover graphics. A fantastic addition to your vintage industrial equipment library. (Bulletin No. 4)