Manuscript Addition: 329
Editorial Description: Pencil, at top right corner of verso.
Editorial Note: The reference is to the work's catalogue number in Surtees, A Catalogue Raisonné .
Manuscript Addition: 11686
Editorial Description: Pencil, at lower right of verso.
Manuscript Addition: Rau - of Phila.
Editorial Description: Cursive pencil, written upside-down at lower right of verso.
Editorial Note: The reference is to the photographer W. H. Rau.