Unprecedented auction of rare illuminated manuscripts and incunabula to be held at Christie's
(from Americana Exchange) Boccaccio's On Famous Women , printed in Latin by Johann Zainer at Ulm in 1473

and

a copy of the Hypnerotomachia Poliphili , once owned by Jean Grolier

will be offered at the event in July.

link to catalogue

The auction will include the 15th century Cauchon Hours

(from Art Knowledge News)