This is an original Aero Engine Data Sheet No. 23 featuring the Bristol Perseus engine type. The sheet provides technical data and specifications on this engine manufactured by Bristol in the United Kingdom. It is a rare and valuable item for collectors of transportation memorabilia, especially those interested in aeronautica. The data sheet has not been modified and is in its original state. It is a great addition to any collection or display and would make a fascinating conversation piece. Don't miss out on the opportunity to own this unique piece of British aviation history.