A Neil Armstrong autograph has been given one of the highest estimates in an autograph sale that will be held on February 23 in Pennsylvania.

As detailed in the letter, Armstrong refused to give his autograph on the philatelic items, a policy he would later expand to all signature requests. This has left a short supply and has led to high values at auction.

The typed letter displays a bold autograph, and is expected to see bids of up to $1,500. Its estimate confirms the PFC40 Autograph Index's finding that, following his death in 2012, the Moonwalker's signature has witnessed a significant leap in value.

The auction also contains a line-up of autographs from presidents, historical figures and aviators, as well as a selection of signed books.

Paul Fraser Collectibles specialises in offering the finest autographs for sale. Included in our vast collection is a complete set of autographs from all three crew members of the Apollo 11 mission.