The Book of Hours page.
The used font (batarde) is from the late 15th century
The design of the border was popular in the north of France in the late 15th century..
What the experts say
The Curator of Medieval and Renaissance Manuscripts of the Rare Book and Manuscript Library of the Columbia University was kind enough to have a look at the images and dates the page as late 15th cenury which is consistent with above information.
Last update : 11 jan 2001