Home » Mecum July 2015 – Four Flawless Mustang Mach 1 and Shelby GT500KR Fastbacks » Mecum Harrisburg 2015 114_1970 Ford Mustang Mach 1 Fastback 13 Mecum Harrisburg 2015 114_1970 Ford Mustang Mach 1 Fastback 13 Home » Mecum July 2015 – Four Flawless Mustang Mach 1 and Shelby GT500KR Fastbacks » Mecum Harrisburg 2015 114_1970 Ford Mustang Mach 1 Fastback 13