I agree with yogi, and will add that the glass sediment bowl screen has a bad habit of sticking to the bowl side of the cavity.

while trying to remember that far back I do recall what you're describing as the "Glass Bowl", actually, they called that a "sediment bowl" and if memory serves me right, some did have an element that you could replace and in some instances they had what was referred to as a porous filtering stone. Some very older carburetors also had this sort of filter. I believe what your currently describing mounted behind the big nut where the fuel line attaches is a "particulate filter" and is not very good filtering agent. Later carbs came with the paper element filters that would insert in the same cavity. I believe you can measure the cavity and match up a paper element with a spring to fit inside this. Better to Google for carburetor rebuilders and ask if this is possible and whether they have the spring available. Other than that, clean that screen with carb cleaner and reassemble. Then go buy a glass tube inline filter that you can incorporate into your fuel delivery system.