help ID carb

I am trying to identify a carb.

It is a Carter AFB, that came from a Dart GT, 273/auto. I got this 20 some odd years ago; I do not remember if it was a '65 or a '66.

I got it to run on a '70 Jeep CJ5 with Buick V6. I was running an Offy 4bbl intake, and headers at the time. It ran really well. It seemed a bit much for off-road at the time. I took it apart to rebuild and rejet, but changed my mind and went back to a 2bbl.

This thing has been sitting disassembled in a box in a corner of the shed forever. I would like to sell it; would be great to put on a 273 restoration.

But, I do not have a tag on it. On the top it is marked 6-1771, and on the side above the patent numbers it is marked 0-1431.

A web search seems to indicate a number more like 4294 or 4295 would be correct. But I do not see those numbers.

Do the 6-1771 or 0-1431 numbers mean anything useful?

I'd like to ID it correctly before selling it.