Could this be Op.96? (Does anyone have even the beginning of a longer list of unpublished works by Kullak- is there a biography, a worklist with music examples, etc.? ...)
Of course (sorry, I wasn't thinking!) this is even more likely to be an excerpt of a larger group of piano pieces (Op.m No.n) by the composer, published separately, fingered and perhaps otherwise edited for publication by Schirmer- very common practice.