??? about my grandmother's wall lamps

These are my grandmother's wall lamps. I have 2 double globe and 1 single globe. I don't know anything about them other than she always had them in her dining room area. If they are worth something that's great, but they are more sentimental than anything to us. We also need to find a replacement globe for the single lamp. The globes are frosted/opaque. Top opening 4inch and bottom 5 3/4 inch. Any info you can provide is much appreciated. Thanks.