BEIN Pforzheimer Intelligence 2088: Paperbound. From the library of Walter L. Pforzheimer.
BEIN Pforzheimer Intelligence 2089: Paperbound. From the library of Walter L. Pforzheimer.
BEIN 2015 2064: Original wrappers. From the library of John E. Herzog. Accompanied by author's businees card with manuscript note.
BEIN 2016 37: Original wrappers. From the library of Robin W. Winks.