JenciusJencius, Edward A. A pictorial catalogue of papal medals 1417-1942 : as struck by the mint of Rome for the Vatican. (Brooklyn, NY, 1977?). 136 pages.
| JenciusJencius, E. A pictorial catalogue of papal medals 1417-1942 : as struck by the mint of Rome for the Vatican. (Brooklyn, NY, 1977?). 136 pages.
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