Fenton made a bunch of these with different name plates in the center like Brian mentioned. I would pay more than $25 then the regular Fenton going rate, which isn't much.
Never seen an Almquest intake. I'd say it was rare. I did have an Almquest cam back in the 50's. I like super dual intake no matter what the brand is. Walt
It says Almquist in the center. It is similar but not the same as yours . I sold it for $250 I think and it was basically like new . The later style manifolds ( 49 to 53 ) with the holes for the breather and road draft tube to not seem to be as desirable as the earlier ones . This is why I sold it , I didn't like the look of the holes up front for my application .
I remember the Almquist ads in the "little" books. PA company (at the time" I think, used to make downdraft manifolds for A's also, also magic things to increase gas mileage.
Paul in CT