1975 Prison Walls - Flight of Soul Medal. Silver. 65 mm x 84 mm, oval. .999 fine. By Frederick Shrady. Alexander-SOM 91. MS-64 (NGC).A lovely satin example with light silver patina overall. This is a scarce type in silver, the mintage just 185 medals as opposed to 1,350 examples in bronze. This lot includes the original case, box, display stand and informational pamphlet issued with the medal by the Society of Medalists, uncommonly saved and always appreciated by serious collectors of the series.