This graphite lead is from a Flown Skylab Mechanical Pencil used in space from 1973-1974, for 270 days and logging more than 100 million miles of spaceflight travel. This includes 4,320 orbits around earth from May 1973 to February 8th, 1974. It had mostly been used by the SL-4 Crew from Nov 1973 to Feb 1974.
The pencil lead is 1/2" and encased on a presentation page with information regarding it and includes a signed certificate of authenticity on printed on the page.
+++CONSIGNED ITEM. NO DISCOUNTS ALLOWED, DUE TO CONTRACT OBLIGATIONS+++