Ten panels on the sides of the windows of the exhibition 
corridor with the names of famous printers:

                Lourens Janszoon Coster.                 Francois Didot.
                Johann Mentelin.                                William Caslon.
          
                     Sweynheym and Pannartz.                 Stephen Daye.
                     John of Speier.                                     William Bradford.

                     Nicholas Jenson.                                 Benjamin Franklin.
                     Anton Koberger.                                 Theo L. DeVinne.

                     Ulrich Zel.                                             Joachim Ibarra.
                     Johann of Amorbach.                         John Baskerville.

                     Badius Ascencius.                              Giambattista Bodoni.
                     Juan Pablos.                                         William Morris.                     

     Four corbels on the triple window in the stack tower: 
Head of a student, Two demon heads from Ars Moriendi, 
Head of a Yale.
     In the arch of the northwest door: two paper makers.
     Marks of famous printers on shields along the wall of
the exhibition corridor, administration offices, and Linonia 
and Brothers, beginning at the southwest corner:

                 Peter Schoeffer.                                   Sebastian Gryphius.
                       Goeffrey Tory.                                     Thielman Kerver.
                       Johann Froben.                                   Wynkyn de Worde.
                       Erhard Ratdolt.                                    Christophe Plantin.
                       Richard Pinson.                                   Aldine Press.
                       Julian Notary.                                      Elsevier Presses.
                       Richard Grafton.                                  William Caxton.
                       Andrew Myllar.                                   Robert Estienne.
                       Simon Vostre.                                      Colard Mansion.
                       Simon de Collines.                                    

     On the small gable above the administration offîces: 
The puzzle from Dürer's Melancholia
     Over the door of the Librarian's office: the inscription

IGNORANCE IS THE CURSE OF GOD
KNOWLEDGE THE WING WHEREWITH WE FLY TO HEAVEN

[Henry VI,  Pt. 2, Act 4, Scene 7.]