Size: 3 items (on 1 microfilm reel).
Summary: An annotated exhibition checklist, undated; a handwritten inventory of oil paintings with 2290 entries dating 1852 to ca. 1907; and a handwritten inventory of 254 watercolors, ca. 1889-1902. The inventories include titles and descriptions of each work, dates the works were painted, dimensions, prices, sales, ownership, and notations of subsequent changes made by Machen.