Officers' Plot To Kill Hitler Constantine Fitzgibbon New York: Avon, [1956]. First U.S. paperback edition. Originally published using the title, 20 July, and then with a U.K. … $20.00
The Blank Page. K. C. CONSTANTINE First edition. Fine bright copy in dust jacket. Scarcest Mario Balzic title. Police Chief Mario Balzic is asked to investigate … $300.00
The Rocksburg Railroad Murders. K. C. CONSTANTINE First edition. Author's first book. Small label on front pastedown sheet with the initials "BTP," else fine in fine, first … $750.00
The Rocksburg Railroad Murders. K. C. CONSTANTINE First edition. Author's first book. Residue from label on front pastedown sheet, else fine in fine, first state dust jacket … $875.00