Estate sale Fuselier speakers for $370 but I know nothing about them.

So I found these four Fuselier speakers for $370 at an estate sale. They look amazing and from everything I've seen around this forum the creator seemed to know what he was doing.  But I'm just getting into this hobby and I've come across these and I have no clue as to whether they are any good or whether they even work. Any thoughts on how I should proceed or steps I should take? Or should I just buy them and hope for the best? 

Here is a photo of them: 

Thanks so much.