Anyone recognize this 1bbl carb?

[Rambow]

I need to figure out what this is so i can locate a rebuild kit.
Doesn't appear to be the original:



Couldn't find any numbers, just the stuff you see.


I do also have a rochester 1bbl that came in a bucket of parts with the truck, i'm thinking it may have been the original off the 216.

Floatbowl 7004516
throttle plate 7004518
1.5" bore

Any thoughts which one i should rebuild and try to run? Engine is a '58-'62 235 six.

Thanks-
Ben