1914, if that is correct, is a very primitive sax. As a collector and refurbisher of vintage saxophones, that up front SCREAMS a lot of work to and end result of a horn with little value. Horns of that age are often in High pitch, as opposed to low pitch, correct pitch today of A=440, an L or an H under the serial number lets you know which it is. So, a serial number will tell us the true age and what you got, model wise.

But if it plays, that is a good sign. Polishing is not necessary But it is not like it is frowned upon to have it shining. To do it correctly, it should be dismantled, cleaned, regulated, oiled, pads and cork replaced as necessary. If you dont want to go all into that, get a silver jewelry polishing cloth, or 2 or 3, and just start rubbing it down.

Good Luck!