Used on a letter (wrapper) from Berlin (4.8.1831) to Stettin with irregular rastel perforation.
Dimension: 32x10 mm
Color: black
Form: rectangular framed cachet
Meyer: page 164 (two types: 33x10 mm and 34x6 mm), letter from Potsdam (21.11.1831) to Berlin
Feuser: Nr. 13
Grobe: Nr. 18 (Dimension: 34x6 mm)
Ravasini: Nr. 27 (33x9 mm, collection Dr. Meyer)