Since it seems The Mark of Zorro (1940) didn't have any Trailers/Previews (??)
I searched the net like Sherlock - scouring fansites and archives. Finding none.
It looks like they exclusively used Posters instead? *shrug*
And I found over 30 different posters for the Movie!
Yet some were in such bad shape that they escaped any expertise I might possess to recover them.
I spent 3 days trying to restore all these old posters to their original pristine wonderfulness.
Color was the main issue. Over the years the Posters fade and the former vibrancy of the colors is lost.
Would you make a Zorro poster in dirty, washed-out, dull Reds, for instance?
Nor I! The former Zing and Zest of Zorro had been lost in time ...
and befell to me for restore the lost Lustre and Vitality of The Fox!
En Garde !!!