All the embossed ones I've seen have been for ginger ale, there are labelled examples for other drinks but those may have been reused bottles. Value is unfortunately pretty minimal, like $1-5 although you might be able to get more based on the curiosity factor. They're very common though, huge numbers of these things were shipped over from the UK. Even the embossed ones are generally pretty common, unless you can find one from a company in the US or Canada.
I just noticed that you said these are from the Kennedy Compound. That's really the most interesting thing about them, although the one you showed is probably too old for a Kennedy to have drank from it.