This is a pair of US 1862-1871 $5 revenue stamps, specifically from the year 1862-1871. These stamps are from the United States and have been used with a pen cancel cancellation type. They are considered to be of very fine or extremely fine quality and are uncertified. The stamps are part of the US revenues topic and are a valuable addition to any stamp collection, especially for those interested in US back-of-book issues from the 19th century.