Oil's well that ends well
This is a great thread which probably has been addressed on the AFCA website ad nauseum but, there is no easy way to oil a permanently lubed GE motor such as those used in the "twin," box, window, hassock or desk fans from that era. When the "single bearing" motor was implemented way back in '49, an internal reservoir and wick system was filled with a spoonful of oil, which theoretically should've last a lifetime (5 years to you and me). The "GE pastie" rear emblem as described is actually a "plug" which, when pried or drilled off (not easy or safe) would expose the shaft with retaining clip as well as an oily felt washer. In probably 95% of those units existing since 1949, the original oil has leaked out or dried up. Those still in use are coasting on what remains of factory lube. Many owners have pried off the rear disk and drilled into the reservoir to add more oil. This is unfortunately the only efficient way to accomplish this task. Dripping or squirting oil at the motor front would serve only to soak the windings and rotor (not good) but most likely never reach the rear bearing anyway. Another great engineering idea which caused owners to trash their fans too soon, yet it was used until GE's last fan lineup in 1975.