Watch List notes:

Opitz, Charles J. ODD AND CURIOUS MONEY: DESCRIPTIONS AND VALUES. Ocala, 1991. Second edition. 4to, original pictorial card covers. (2), 134 pages; illustrated. Very good or better. [with] Gillilland, Cora Lee C. THE STONE MONEY OF YAP: A NUMISMATIC SURVEY. Washington: Smithsonian, 1975. 4to, original printed card covers. vii, (1), 75, (1) pages; illustrated throughout. Near fine. [with] Johansson, Sven-Olof. NIGERIAN CURRENCIES: MANILLAS, COWRIES AND OTHERS. Norrköping, 1967. Second edition. 8vo, original printed card covers. 57, (17) pages; folding maps and illustrations. Fine. Three specialized works on the subject. The Opitz work is significant and geared toward collecting.