How can you tell if a brass lamp is vintage?

To tell if a brass lamp is vintage, you'll need to determine if it is 20 to 99 years old by conducting online research or having an expert, such as a certified appraiser or experienced antique dealer, evaluate it. If you prefer to do the research yourself, first look for the maker's markings. Then, consult trusted online resources to identify the maker and read further to find out when the company was active and manufacturing similar lamps. Checking the plug can also be helpful. If it has two prongs of the same size, you can conclude that your lamp was made in 1962 or before, as U.S. standards set that year required all lamps to feature polarized plugs with one large and one small prong. Keep in mind that it is possible to rewire a lamp, and some makers switched to polarized plugs before the standard was established, so the lack of a non-polarized plug doesn't necessarily mean a lamp isn't pre-1962. Find a large selection of vintage brass table lamps on 1stDibs.