Langhorn International Speedway 100 Mile National Championship race was held on June 12, 1966.

This program is signed by the following drivers:

Mario Andretti

Joe Leonard (1932-2017)

Don Branson (1920-1966)

Al Unser (1939-2021)

Sam Sessions (1935-1977)

Mario Andretti would start from pole position and would go on to win this race with Leonard finishing 3rd, Branson 4th, Unser 9th and Sessions 15th.

Note: Don Branson would go on to lose his life 5 months later in a crash at a sprint car race at Ascot Park in Gardena, California on November 12, 1966. (Branson was 1964 Sprint Car Series Champion)

The legendary Langhorn Speedway located in Bucks County, Pennsylvania is a 1 mile paved oval and was considered one of the deadliest tracks in the world, with 18 drivers, 5 motorcyclists and several others killed there during its 45 year history. The speedway operated from 1926 and closed in 1971.

Time trial results for this race have been entered in pencil by the original owner. Listing includes: car number, drivers name, engine, qualifying time and starting position.

This extremely rare signed program is in great condition considering its age (60 years). Program has been stored in a clear plastic magazine protector since purchase.