I am trying to help narrow down the date of some photos, and these two photos have a visible pump that I cannot identify. The photos are of the same store in Wyoming and from the same time period, and they appear to be the same gas pump....although I am not positive. The bulges in the cap over the sight glass (for a light?) in the first photo and the rim below the sight glass resembles a Hayes 504 (from Jack Sim's latest Gas Pump Bible) but the pump body and the cap in the first photo are clearly round while the Hayes 504 is not. And I am not even sure that the pump in the second photo has the same bulges in the cap. I am stumped. Can anybody help with an ID?

Thanks.

Andy

Marie-Janet-Lida at Store, SEPT 1928.jpg Smiths and Sherlocks at Store, SEPT 1928.jpg