Previously cataloged as trade catalog.
This leaf is rubber stamped "Muestras Registradas Gesetzlich Geschutzt deposes registered" and a trademark of a circle with the letters PWS within; P is at the top, W at the bottom, and the letter "S" surrounds and separates the two. "PWS" stands for Palme-Walter, Steinshönau. This same registration stamp appears in a printed form in Palme & Walter's "Cat. 18" (Bib no. 86595).
Sketches of lamp bases, numbered 2007, 2432, 2442, and 2479. The number 7 has been stamped in the upper right hand corner in purple ink.
Digitized by Boston Photo Imaging April 2013.
Handwritten in pencil, "Palm et Walter" on reverse.