Some awesome medieval shield photographs:
Decoration on medieval shield on a church ceiling
Image by Horia Varlan
Floral ornament on a medieval shield positioned at the intersection of two arches on the ceiling of the Evanghelical Church in Sibiu. It is within a cross like encasing with circular shapes.
Image by Rhubarble
Shield from late 13th or early 14th century France.
The Cloisters Museum, Fort Tryon Park, Manhattan. A branch of the Metropolitan Museum of Art.
Medieval shield in Castel Beseno
Image by querin.rene
A wooden shield