P3D Re: Audioscopics

[Derek Gee <73157.2172@xxxxxxxxxxxxxx>]

Lattie explains:
>Mmmmm, I guessed the 40's, though 30's seems to
>fit perfectly, too. Now, part of my surmise was because
>I though Polarized glasses were widely introduced at the
>1939 Worlds Fair (along with Fiberglass and Nylon
>..or was it Rayon?) Oh well.

I can see how you might guess the film was 40's by associating with
the first large public use of polarized glasses at the '39 Fair.  The
Audioscopics films were Anaglyph, not polarized.  If I remember correctly,
Polaroid introduced those glasses around 1935, and while Polaroid had done
some 3-D tests with it, it took a few years before being displayed at the
'39 World's Fair.

                                  Derek Gee


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