All Sanskrit manuscripts described by Aufrecht are now kept at the Biblioteca Nazionale Centrale di Firenze:
You have to contact them and ask about the current situation regarding digital orders.
Best wishes,
Camillo
From: Dominik Wujastyk <wujastyk@gmail.com>
Sent: Friday, May 15, 2020 3:10 AM
To: Blinderman, Radha <rblinderman@g.harvard.edu>
Cc: Indology <indology@list.indology.info>
Subject: Re: [INDOLOGY] Searching for a manuscript from Aufrecht's Florentine Sanskrit Manuscript Catalogue
At one time, Pearson was a useful guide for this kind of question:
Pearson, J. D.
Oriental Manuscripts in Europe and North America: A Survey. Zug: Inter Documentation, 1971. )
Worldcat)
Best,
Dominik Wujastyk