How do I identify a Stiffel brass lamp?

To identify a Stiffel brass lamp, look for the maker's markings, which may include “Stiffel Lamp Company," "SLC" or “Stiffel." Locations of markings varied over time, and they appeared in the form of both etched signatures and foiled labels. Check your lamp’s switch, shade, bulb interior, neck and base for these markings. If you can't find a Stiffel mark, it may have once had a paper label that has since become detached. In this case, a certified appraiser or knowledgeable antique dealer can assist you with the identification process. Find a selection of Stiffel lamps on 1stDibs.