Wilhelm Ensslin.  Munich, Sitzungsberichte - Bayerische Akademie der Wissenschaften. Philosophisch-Historische Klasse 1947. 1949.  PB  115 pages. German text with citations in Greek and Latin.  140 x 230 mm.

Shapur I, the Great was the son of Ardashir who battled against Rome in a series of wars.  This is the classic reference which is always quoted.

Lower edge shows shelf wear, contents clean and uncut !  Scarce.