http://buxheimlibrary.org/library-history/adolph-sutro-1830-1898/sutro-purchases-at-1883-auction/
“We now have some real sense of the immense loss to the Sutro Library that occurred as a result of the destruction of the Battery Street warehouse in the 1906 San Francisco earthquake and fire, at least in terms of Sutro’s ownership of Buxheim manuscripts and printed books. Of the 156 Buxheim manuscripts listed on the receipts as purchases, only 4 have been found to date still extant in the Sutro Library.”
See also https://archivalia.hypotheses.org/7337