PCGS 1936 Robinson Old Commem Half Dollar 50c Graded ms65 By PCGS. The Robinson-Arkansas Commemorative was a much maligned Commemorative, this Issue is Nowadays Sought After as much as the others. The Issue is Generally Weakly Struck and has Luster which looks more Satin than Bright. When examining an Robinson-Arkansas for wear, check Miss Liberty’s Cheek and Wreath, also the Eagle’s Head and Right Wing - these are the High Points. The typical Robinson-Arkansas Half Dollar will show extensive contact marks and abrasions on the Senator’s face.