The Stovebolt Site Forums The Shop Area Name that part ... Air cleaner id

Not sure what engine that might have come on, but may be from a car, based on the offset to the carb to clear the lower hood on a car. Might be an oil bath, but hard to tell from the angle of the photo.

[on edit] Google Lens comes up with this:
The selected region displays an elongated, offset metal air cleaner housing from a classic inline-6 engine, commonly found in vintage mid-century Chevrolet or GMC trucks.
Also:
Parts Overview
Type: Vintage offset air cleaner housing / oil-bath or dry filter assembly.
Application: Designed to clear the brake booster or steering components on inline-six engine bays (such as Chevy 235 or 250 straight-six motors).
Condition: Shows aged black paint with surface rust, typically restorable or used for period-correct engine restorations.