It is not for a model A Ford ,but it would have value to someone needing it. Might work on a hopped up T or other car. If you can describe it fully put it on eBay if you want to sell it.
It is a Stromberg OF. They are an accessory carburetor for the Model-T era. I have one rebuilt by Stan Howe that is fantastic. There is a bunch out there that do not run well due to float & setting issues. If you plan to run it, you need to have someone like Stan rebuild it. I would've been interested in purchasing yours as a spare if you were not so far away. Maybe someone local will be interested in trading you for Model-A parts.