It looks to be a Koken, I just picked up a similar model myself. Paid $200 for mine
http://soda-machines.com/discussions/index.php/topic,11292.0.htmlThere will be a brass Koken label in the middle of the lower cast iron ring if its still there. I have not been able to find a good all encompassing reference that identifies all the specific Koken models but I believe mine is a Model 119. Yours appears to be a Model 13 based on the taller lower section and the difference in the cast iron mounting bracket. See this site for a pic of both in restored condition.
http://www.antiquewhs.com/barberpoles.htmJust out of curiosity, does yours have the original wind up motor with it? There is a pic of the one for mine in my thread, I am looking to get it back in working condition. The wind up motor for yours would be identical but have a longer crank shaft coming off of the bottom. Also, it looks like there might be a globe on top of yours - any chance its the original and if so do you have any pics that show it?