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Adriano Cappelli (1859-1942) - Lexicon Abbreviaturarum, J.J. Weber Leipzig, 1902 (page 349 crop) - Manual styles for the character R - PICRYL Public Domain Image
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By Adriano Cappelli Lexicon Abbreviaturarum: Dizionario Di Abbreviature Latine Ed Italiane (Italian and Latin Edition) (8th Revised edition) [Hardcover]: Amazon.com: Books