High Quality Content by WIKIPEDIA articles! The Pipe rolls, sometimes called the Great rolls, are a collection of financial records maintained by the English Exchequer, or Treasury. The earliest date from the 12th century, and the series extends, mostly complete, from then until 1833. They form the oldest continuous series of records kept by the English government, covering a span of about 700 years. The early medieval ones are especially useful for historical study, as they are some of the earliest financial records available from the Middle Ages. A similar set of records was developed for Normandy, which was ruled by the English kings from 1066 to 1205, but the Norman Pipe rolls have not survived in a continuous series like the English.