Two Carter BBS 1bbl Slant Six Carbs. One is a 2901s

2901S is a 1960 Valiant 170/automatic carb. It directly fits a '61 or '62 car without PCV, but it will not work on a '63-up car. The other one (on the left in your pic) is a '61-'62 carb apparently for cars without PCV, though I can't tell for sure about the PCV detail from this angle (I could if I saw a pic of the front of the throttle body). If no PCV then same as the 2901: no work on '63-up cars, no work on '61-'62 cars with PCV.

For someone who has a real early car, $50 shipped is a screamin' deal for these fairly good looking, mostly complete carbs.