book in wooden boards covered in suede is used here in order to
illustrat ea Romanesque style closure.
a historically accurate model, the strap would not be attached to
the rear board of the book with a brass cover plate. More likely,
the strap would have been set into a recess in the board itself
underneath the covering material; and it would extend out from under
the covering through a slit at the foredge. There probably would
have been two clasps which may have fastened onto the back board,
rather than onto the front.
This hinged brass clasp design was derived from an illustration
of a bronze Romanesque design in the book Archaeology
of Medieval Bookbinding, 1999, by J.A. Szrmai. The
illustration showed one rivet used to attach the clasp to the strap,
so that is how I made the model. However, only one rivet is not
advisable because the clasp would eventually tend to rotate on the
strap, rather than remain in a fixed position, creating stress which
would ultimately cause a tear in the leather strap.