Hey Cola,
It depends what you mean by 'find'. If you are asking how hard is it to find one on ebay, probably not too hard. There should be many on there at any given time. If you mean how hard is it to find the rarest cities, that might be significantly more difficult. If you mean, how hard is it to find these things underground, or in a dump, or underwater, I'd say it still depends. If your city had a large bottler that sold tons of it, not too hard. In my experience, maybe 10% of the hobbleskirts I find are dated. That could be different elsewhere.
Like to find some pensacola ones. I am just starting in collecting bottles. I am guessing that they have all different city's? I live near p-cola I would like to start off with some of them. Do u have any?
I do have one Dec.25, 1923 a.k.a. "Christmas" Coke from Mansfield, Ohio. The 1915 patent Coke from Pensicola are scarce so you will have to more than likely pay good money for one, good luck! If you want the one I have just let me know. -Andy