I could not find the bottle on the Brother's site but can tell you the original glass bottle on mine is dated coded on the bottom (many are). Also if you purchase NOS it is easy to reference from the part number on the box if included. Here are the pictures of my set-up. A word of caution and original or partial set-up can be spendy on eBay. Mine complete was $220 which was on the cheap end of what some are going for.

http://good-times.webshots.com/photo/2941565550102454676kJTqbv
http://community.webshots.com/photo/2962002480102454676tRUvXV