How do I tell if an oil lamp is antique?

There are a few key things to look for to identify an antique oil lamp. First check for a patent number anywhere on your lamp. Use a black light to inspect whether your lamp’s hardware is secured with glue, which fluoresces and would indicate a contemporary lamp. Antique lamps use plaster to attach hardware and fill gaps. An antique oil lamp may have hand-blown glass. Shop a range of professionally authenticated antique oil lamps on 1stDibs.