One great thing about Pairpoint lamps is that they are almost always marked. Every original Pairpoint base should have a mark on it. Some lamps are marked and some are not. Fortunately, the quality of the glass and painting on the shade is usually enough that they don’t have to be marked in order to be considered original. However, some Pairpoint lamp shades are marked. We didn’t include it here. But the shade can be marked with a tiny “P” somewhere on the inside of it. We did include some of the more frequently encountered Pairpoint marks below. Please contact us if you need help identifying any marks related to your Pairpoint lamp.