Mammoth oil lamps were produced mainly for use in stores and other commercial venues. "Mammoth" is the product name of the line created by Bradley and Hubbard Manufacturing Co. (B&H) of Meriden, CT and is so named because of its mammoth size compared to other oil lamps of the late 19th century. Similar lamps were the B&H "Radiant #5", "The Pittsburgh" by Pittsburgh Lamp, Brass and Glass Company, E.M. Miller's "Dresden" and the The Plume & Atwood Manufacturing Company's "Plumwood". Some of these styles had opal glass platters instead of tin, and still others had round opal domes. These are all generically called mammoth lamps, as it is the term coined for lamps of this style and size.