Mine Safety Congress Advert Real Photo

Advertisement for the Min Safety Appliances Co. at the 1954 National Safety Congress, Conrad Hilton Hotel, Chicago, Illinois. Interesting photomontage of the company buildings in Pittsburgh, PA; Johannesburg, South Africa; Glasgow, Scotland; Callery, PA; and Toronto, Canada.
[Advertising/U.S.A.]
[Occupations/Mining]
[Real Photo (RPPC)/Advertising]
[Advertising/Real Photo (RPPC)]