pb?Paperback. Typically 7" by 4.25" (18 cm by 11 cm) or smaller, though trimming errors can cause them to sometimes be slightly (less than 1/4 extra inch) taller or wider/deeper.
Notes: Data from Bookscans; year from catalog number.
The second part of the signature "Podwil" is left uncropped in the lower right-hand corner—the handwriting matching that on, for instance, The Black Star Passes.