U S AIR FORCE B-1B Lancer Challenge Coin.

This is a great looking US Air Force B-1B Lancer commemorative challenge coin. Coin has reeded edges and is about 1 9/16" in diameter. All details are raised lettering and gold plated. Coin is contained in an snap tight coin holder.

The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy bomber used by the United States Air Force (USAF). It is commonly called the "Bone" (originally from "B-One"). It is one of three strategic bombers in the USAF fleet as of 2017, the other two being the B-2 Spirit "Stealth Bomber", and the B-52 Stratofortress.

The program was restarted in 1981, largely as an interim measure while the stealth bomber entered service. This led to a redesign as the B-1B, which had somewhat lower top speed at high altitude of Mach 1.25, but improved low-altitude performance of Mach 0.96. The electronics were also extensively improved during the redesign, and the airframe was improved to allow takeoff with the maximum possible fuel and weapons load. The B-1B began deliveries in 1986 and formally entered service with Strategic Air Command (SAC) as a nuclear bomber in 1986. By 1988, all 100 aircraft had been delivered.