It's hard to date them exactly, especially without decals.
I would estimate this is from around 1910 - 1920 - probably a Model 33 Brunswick - something like that. It looks like a factory ivory and brass joint to me. The Model 33 was one piece, but they could be ordered in two piece and sometimes people had them changed to 2 piece by the factory later on. Is there any sign of a decal on the butt? Can you post a clear picture of the weight stamp and where it's located?
Here is a link to some of the early Brunswick catalogs. The 1908 shows a Model 33 - that looks pretty close. Hard to tell from the pics, but the handle looks like it might be the classic rosewood they were using in those days.
http://www.palmercollector.com/Brunswick/BruswickCollectorHomePage.html
Chris