A serial from the 40s!!!

SPY SMASHER SERIAL(1941)

This was quite fine and fun!! Kane does
an outstanding job of playing duel roles!
and the story was good! Some would say a
bit overhanded with the patriotic main
story line, but it was 1941, just before
the US joined in the war! Very good serial! A

From IMDb.com:

This is the finest serial ever made. Kane
Richmond plays twin brothers battling Nazi
agents in America. With expert casting,
stunt work and direction this is Republic's
finest hour in cliffhangers. The serial
never drags and the camera work and
doubling creating the illusion of twin
is peerless. - antonio1952