[Ron Ramirez]

Stupid question time. Is there a way to look at the schematic and tell which are paper/wax caps?

Naah, that isn't a "stupid" question at all

I can't speak for Rider's, but in the original Philco factory schematic for the 47-1227, it shows the electrolytics with a small + just above and to the left of the capacitor symbol, indicating the positive lead.

I see four electrolytics (again, going by the original Philco factory schematic): C102, C103A, C103B, C325.