MEDIEVAL COINAGES: GERMAN LANDS
From NBSwiki
Craig, William D. GERMANIC COINAGES: CHARLEMAGNE THROUGH WILHELM II. NP: The Author, 1954.
Lhotka, John F., Jr. MEDIEVAL BRACTEATES: AN EMPIRICAL GUIDE. NP: American Numismatic Association, 1958.
Metcalf, D. M. THE COINAGE OF SOUTHERN GERMANY IN THE THIRTEENTH CENTURY. London: Spink & Son, 1961.
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