O.K. SIGN IN TV
In TV DICTIONARY: HANDBOOK FOR SPONSORS (1951), edited by Herbert True
and published by Sponsor Publications:
Directions to talent--O. K.
Sign--Form circle with thumb and forefinger--other fingers extended.
There's nothing new about this that I didn't find in a similar, earlier
dictionary, but it's significant that, as late as 1951, the sign still needs
to be explained in such a dictionary.
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