What pray tell, does PBK stand for?



On Thu, Nov 15, 2018 at 1:24 PM Click, Ben <[log in to unmask]> wrote:

> Thanks, Kevin.  I wonder if Clemens learned the secret PBK handshake.
>
> Ben
>
> On Thu, Nov 15, 2018 at 12:49 PM Kevin Mac Donnell <
> [log in to unmask]> wrote:
>
> > I’m trying again with an image of Mark Twain’s PBK key.
> >
> >
> > Kevin
> > @
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>
> --
> Ben Click
> Professor, English
> Director, Writing & Speaking Center
> Editor, *The Mark Twain Annual*
> Director, Twain Lecture Series on
> American Humor and Culture
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> St. Mary's College of Maryland
>