A beautiful initial letter R from a missal from the 13th or 14th century that was in use in the diocese of Turku
"The existing fragments have survived the soiled hands of their mediaeval readers, reuse by bailiffs of the 16th and 17th centuries, several fires, and arduous journeys from Finland to Sweden and back. Even though parchment is a very durable material, many of the National Library’s fragments are now quite fragile from heavy use and recycling, and are faded, torn and scorched. In the Middle Ages, the useful life span of a parchment manuscript was generally estimated at 300 years, but these fragments are now up to three times older."
photo credit: National Library of Finland