Type of writing instrument: Ballpoint pen Pen features/materials: Oil-based ink No box included!! This is a deadstock item manufactured to commemorate Jack Nicklaus' victory at the British Open. It's a twist-action oil-based ballpoint pen that uses Cross-type refills. It probably sold for around 1500 yen at the time. The country of manufacture is unknown. This rare and hard-to-find ballpoint pen is perfect for golf enthusiasts or as a gift. It has a good weight and a luxurious feel, making it highly recommended!