It is, but it's so badly cropped that much of the visual detail of the original film is lost.
I found the film on Amazon Prime, if that helps.
Carl
-----Original Message-----
From: Mark Twain Forum <[log in to unmask]> On Behalf Of Charles Cogar
Sent: Saturday, January 5, 2019 10:54 AM
To: [log in to unmask]
Subject: Re: The Adventures of Mark Twain
I believe this is it:
The Adventures of Mark Twain 1944
<https://www.youtube.com/watch?v=vp18rJierpA>