OK, here's an article from Popular Mechanics from 2015 written by Gun Jesus.
https://www.popularmechanics.com/military/weapons/a18692/forgotten-weapons-sedgley-glove-gun/
It also says something that I thought that I knew -- that these glove guns were chambered for .38 S&W, NOT .38 Special.
But Herrera appears to be loading his with a .38 Special.
I have to watch again but was his a modern repo? If so 38S would make a lot more sense.
Edit: Based on the transcript I would say his is the real deal minus the glove which is new.
something that's worth noting is
1:23
that there is actually no footage to my
1:26
knowledge on the entire internet of this
1:29
actually being used so this video might
1:31
be the first time there's actually
1:32
footage of a s Mark I firing meaning
1:34
that you know while this is a
1:36
potentially Priceless piece of History
1:38
we're also kind of preserving history
1:40
forever in a way by showing it actually
1:42
being used and I think that's kind of
1:44
cool so let's go [ __ ] some [ __ ] up so