Inscription: On the old secondary support : at lower left, inscribed "150" in pen and brown ink (19th-century handwriting); below, inscribed "Hz. No. 5011" in graphite (20th-century handwriting); below, inscribed "234138/0843 Beilage" in graphite (20th-century handwriting); at lower center, inscribed "145 (Beilage)" in graphite (20th-century handwriting); at lower right, inscribed "F. Kobel." in pen and brown ink (19th-century handwriting); at lower right, inscribed "[...] 511" in graphite (19th- or 20th-century handwriting).
