Remington called the pattern Oxford 4 S.J., and that is a very nice example.
The significance of 'S.J.' (Boston 2 and Oxford 2 & 4) is uncertain, but could be Simonis-Janssen. The Albert Simonis, J. Janssen & Demoulin Fils consortium was established in 1883, and used the mark 'S.J.& D'.
Are there any initials forward of the flats?

More here
https://docs.google.com/document/d/1DaS94GLQ9b3w9XRU4cBX7M0LUIB_mTDFpvSZxCmUQME/edit