I know it looks like a spot light in the pic, but this is a "diffused beam" type light, I have some of each and this one is not as bright as the spot light. I woulc need to take it apart to see what number it is, as I don't recall at tyhis time.

1965 GMC 3500 Rescue in the Stovebolt Gallery

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Jolly Goodfellow.
the 6066 GMC Guy.
Jolly's Truck & Car Show Page.
Owner of ~ 1965 GMC 3500 Custom Rescue Squad {Black Built Bodies}.