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 > @ > Mac Donnell Rare Books > 9307 Glenlake Drive > Austin TX 78730 > 512-345-4139 > Member: ABAA, ILAB > ************************* > You may browse our books at: > www.macdonnellrarebooks.com > -- Ben Click Professor, English Director, Writing & Speaking Center Editor, *The Mark Twain Annual* Director, Twain Lecture Series on American Humor and Culture (240) 895-4253 St. Mary's College of Maryland