To be OFFERED AT AUCTION at RM’s Amelia Island event, March 10, 2012. To view this car and others currently consigned to this auction, please visit the RM website at rmauctions.com/Amelia Island . Chassis No. KA3118 Estimate: $175,000 - $225,000 US Series 521, Model 523. 150 bhp, 414 cu. in. V-12 engine, two-barrel carburetor, three-speed sliding gear manual transmission, solid front axle with semi-elliptic leaf springs, full-floating rear axle with semi-elliptic leaf springs, and four-wheel mechanical drum brakes. Wheelbase: 136 . For the complete description or to view additional photos, click here