Very close to mint porcelain pump plate from Tidewater Oil Service.

I believe this would be the matching pump plate to the graphic Tiwoser gas globe.

$550

...same company, but later than the globe; my understanding is that the sign is from after they became a Pure jobber...

i thought about that... but would the pump plate still state TideWater Oil Service with the Tidewater Premium brand if they were already a Pure jobber?

They could have still been selling their unbranded premium (if it was a good seller or well known in that market) along with Pure branded fuels. Some of the times you would have the main pumps dispensing the major brand and a local unbranded pump to the side. But that's just a guess

And they still probably would have been Tidewater Oil Service even if they were a Pure jobber at the time.

price drop... $450

I have the regular plate, which is red, with the Philpotts name.