By Adriano Cappelli Lexicon Abbreviaturarum: Dizionario Di Abbreviature Latine Ed Italiane (Italian and Latin Edition) (8th Revised edition) [Hardcover]: Amazon.com: Books
The way to unravel the Voynich code (Part 1/9) : r/voynich
Mark Thakkar on Twitter: "Cappelli's Lexicon abbreviaturarum is now available in a quickly searchable offline version. You'll need to install a dictionary program like StarDict or GoldenDict, so there's an initial hurdle
Adriano Cappelli (1859-1942) - Lexicon Abbreviaturarum, J.J. Weber Leipzig, 1902 (page 349 crop) - Manual styles for the character R - PICRYL Public Domain Image