These irons are a sampling of the Streamlined Irons exhibit, currently installed between Terminals C and D of the Philadelphia International Airport.
Manufactured between the 1930s and 40’s the irons are from the collection of Jay Raymond, who has studied them since the 1980s. In 2008 he published Streamlined Irons, a survey and assessment of the design, manufacture, and cultural significance of these little marvels. More info on the book, which is spectacularly designed and photographed, and Raymond himself, here. Info on the exhibit here.