Wow! Antique-shop.com forums are in the big #1 spot on Google for the search term "antique shop forum", for 4 years running!Thanks to YOU.
The higher the voltage the lower the amps. That why an old car distributor cap can knock you on your butt at only twelve volts. The formula is Amps = Watts / Volts ex. 100 watts @ 120 volts is 1.09 amps. At 240 volts it is .545 amps.
Thanks for the links, the antique dealer I bought it from told me it was from the 40s.