11. The five fragments written on this paper date from 1781 through 1783. See Konrad, ed., Fragmente, 240–241, 283. The paper however recurs in works that can be dated as late as 1787. See Alan Tyson, Wasserzeichen-Katalog, NMA, Ser. X, Werkgr. 33, vol. 2, Textband, 26.