This subseries houses financial account books and journals that cover a wide variety of sales and purchase transactions and other costs associated with sales and purchases. The account books are arranged primarily according to the firm's record system of "credit" and "debit"; a few are organized according to "sales" and "purchases"; others are arranged according to specific genre or office. Within each set, the journals are arranged chronologically. Also found are ,or scratch account books, which appear to contain temporary entries. Although duplicate, complex, and often difficult to read, the account books have valuable information about sales, purchases, consignments, travel, and general expenses. Most of the account books contain client names, dates of purchases and sales, prices, and titles of individual works of art. Some have name indexes.

This series has been scanned in entirety.