This look like a Hebrew date to me " ט"ו בתום היום א' דחול המועד סוכות תרנב"
I you do not read Hebrew, this means "on the 17th at the end of the day, first day of  hol hamoed hanuka, 1891" using abbreviation "א דחהס" to describe  the first day of hanika, and  the Hebrew year in Hebrew letters "תרנב". If I'm right that will be of the 17th October 1891eve....
Hope this helps
My regards
Avi Markovits
avi.markovitz@...