My 2 dollars worth (inflation on the 2 cents worth), looks 1890's to me and looks like the "A. Trasks Magnetic Ointment" type bottles, or bottle-ettes as you say. Not heard of it either, but there were a number of copy cats on this style as Trask's was most likely the consumers favorite based on the number of them out there and the span of years they were produced. Nice find regardless. Jack