op II p.423 cum ad s...

http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/37432 <http://www.w3.org/nl/lemon/frac#Attestation>

op II p.423 cum ad s... 
op II p.423 cum ad scribendum accingeris, epistolam interiorem in Alphabetum hoc Biliterarium solves. 

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