German Leaf from a Psalter ca. 1500

A Psalter consisted of the Psalms, a series of canticles or additional poetic passages from the Old and New Testament. During the Middle Ages Christians were expected to read a series of daily devotions that centered around all 150 Psalms. But because this system was impractical, during the Renaissance the readings were spread out to encompass a full week. This particular Psalter leaf was made for use and not just as a status symbol.  

Psalter. Germany. ca. 1500. Leaf Measurement 155 x113 mm. Text Measurement 109 x 70 mm. Text, Psalms 105 and 106. Script: Gothic Libraria.