All of these, except for the largest one in the back, are probably medicine bottles. The ones on the right have a really unique shape, almost like a pocket flask, in that they curve slightly to fit in a pocket. The round one at the left is one of my favorites in that you can see bubbles in the glass meaning it was hand-blown.
This one is marked with the doctor's name. Back in the early days, many doctors (and later druggists) mixed their own formulas, and patented the mixtures (hence the name "patent medicine"). The traveling medicine show became famous for quakery with showmen selling cure-alls that of course did not do a thing. But until medicine became highly regulated by the FDA, it was always "buyer beware"!
This one is not a medicine bottle at all, but a soda bottle produced by a local bottler. Neis Beverages were sold in this area up until 1956. I found this one at a local park that had once been the amuseument park Menlo Park, which also closed in the mid-1950s. I was walking along the hiking path and just happened to notice a glimmer of glass under the dirt. I dug it up and this is what I found.
It's cool because it's a link to the park's past- I can just see people waiting in line for the carousel (which is still there and operates about once a month- rides are 25 cents each!) and sipping on a soda from this bottle. There are a couple "ghost parks" around here, and I just love the idea that nature has reclaimed them in such a short time. Some of the features are still evident, like concrete pads from rides and rusty lights dangling from the trees. Even some of the places I went to as a child are no longer there- here's a cool website if you remember places like Forest Park or West Point Park, or even the grandaddy of them all, Willow Grove Park!