Description: Original old vintage catalog ROYAL VENTILATOR COMPANY of Philadelphia, PA. Double Cone Damper, Glass Top, Rectangular and square, Smoke Jack, Insect proof and Bird proof. Made of galvanized steel, copper, toncan metal, Armco, iron. Disbound from a large 1931 construction book, this unique one page technical data specification sheet would display beautifully matted and framed. Slight damp stain on outer edge. It would be a marvelous addition to your industrial engineering library.
Category: Roofing CatalogsProduct Code:
Royal Ventilator CompanyAvailability:
11in x 8in Views:
$22.00 $16.50Save: -$5.50 (25% off)