RARE VINTAGE Vornado B30CF-1 Turnabout Box Window Fan 3-Speed Turbine Art Deco. RARE & VINTAGE ITEM… Comes Directly from Grandparents Farm! Rotate the Fan to use as an Exhaust Fan (see photos). LARGE: Approx 18 1/2″ width X 21″ height X 14 depth (Dimensions in Photos). Includes Everything You See in the Photos. No Other Accessories if Not in Photographs.