Erwin Panofsky
Hercules am Scheideweg und andere antike Bildstoffe in der neueren Kunst.
Leipzig: B. G. Teubner, 1930. Studien der Bibliothek Warburg, XVIII. First edition. xix/216 pages/77 plates.
Volume, measuring approximately 7.75" x 10.75", is bound in original printed wrappers. Binding is cracked at page 216. 
The book consists of two distinct parts, the first, devoted to the motif of the signum triciput (the three-headed form), the second to that of the Hercules prodicius (Hercules at the crossroads), two parts closely linked together by common assumptions and methodological objectives. Among these, the unbreakable link of text and image, figurative tradition and written tradition.