What do you mean "worth to deal with"?
It looks like it is solid brass. If that is the case, If you were to try and replace ONE of those today, it would probably be at least 50, perhaps 100$ or more.
So if you mean "worth to deal" as in you want to use them but they need to be refinished, I would say absolutley.
If you mean worth to sell them, I would also say absolutley. With copper and brass being around 1$ a pound scrap these days, it would be worth dealing with it in scrap alone!
Again, if it is solid brass, I would think you could get at least 10$ or more for each for them, resale in the internet.
If it is Brass plated steel, they are still desireable. What is your desire for them?