I understand this, I am a 81 year old body man and I would like to seal the big gap up a little as on the later models. I am looking for seals that will fit on the outside. Maybe screw to the door shell, as on later cars.
I've not seen any door glass wiper seals for model As. A person would have to research wiper seals from later cars that might work with the door edge to glass interface. Reproduction ones are available from repro parts sources for later Fords and some GM products. Attatchment to the lip might be the governing factor as well as distance from lip to glass.
Most of these were there to minimize water intrusion but some are more effective than others.
My 31 Sport Coupe has a rubber seal but they were on it when I bought the car. The man who installed them is dead and I don't know what he used. I will try to get a picture later.
Glue fuzzy home sliding door seals from the hardware store to the window lower channel.
Or to the outside skin window sill. The slant window cars have a special rubber extrusion from the vendors that probably can be used on other models but requires removing the glass. The seal only works with the glass fully in the up position and is more of an air seal than water seal.
You can find a rubber glass lower bedding with a lip to stop water. It was used on other makes, maybe GM cars. Ford sedans used a metal channel with a squeegee rubber screwed to the door wood to close the gap and I think coupes had somthing similar (photo post #2). Keep looking.
55 years ago after washing my A I could here water sloshing around in the doors, I removed the upholstery cleaned out the mud and cleaned out the drain holes. When I would wash it I made sure to run the garden hose down past the glass making sure water ran out of the drain holes. The quarter window upholstery was a pain though, my panels where made of water resistant material
Here is the seal on my Sport Coupe. Like I stated in post #7 the previous owner (RIP) installed these and I don't know where he got them or what they were designed for but they fit perfectly.