Original old building material vintage catalog THE PASSONNO-HUTCHEON COMPANY of Cleveland, OH.  OLO Seal, Paints, Varnish, Enamel. Historic Village of Dickeyville, Maryland. Pigmented primer and sealer, flat oil, Enamelac.  Disbound from a large 1938 construction book, this unique one page technical data specification sheet would display wonderfully matted and framed.  It would make a sensational addition to your architecture and engineering library!