This is a Model 177. I have one on my site just like it. External bowl lights are correct for this unit. Gilbert and Barker made a lot of pumps for Standard Oil and that company used globes with 7 inch bases. To adapt a 6 inch globe to work, simply take a thin piece of sheet metal. Cut a seven inch ring to fit into the globe holder. Now cut out the center of the new disc, leaving a shelf around the outer edge, to allow the light thru. Place it in the holder and using longer screws, tighten down the 6 inch globe to float in the middle. Paul
www.severngaspumps.com
