Hi Ferg,
Welcome to Oldgas.com and to our petroliana hobby.
I looked through the 1000 color scheme images in the book, PCMs Guide to Gas Pump Restoration and found only one brand that used a red pump with blue doors. That was one of two Chevron Supreme color schemes from 1956-1959.
It could well have been a Chevron gas pump or from a small independent or somebody may have painted it that way because they liked it.

That's great to restore to the original colors of the pump in its day. But we usually say, "It's your pump, paint it the colors of the brand you want."

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Jim "Oldgas" Potts
Your host and moderator

Jim "Oldgas" Potts
Your host and moderator