If you have a chance to visit the Lyon Healy showroom and factory in Chicago, you’re in for a treat. I am posting this link that should take you to an online album of photos I took at LH when I was there three years ago. (I hope the link works!) These photos were taken in the show room.
While you are there, you can play any number of harps. And, the helpful staff there will take harps you want to try into a private room, where you can play them.
They give tours of the factory by appointment. Their tours used to be at noon on weekdays, but that may have changed. (Taking photos in the factory was not allowed.)
Disclaimer: I have no association with Lyon Healy…other than I am a very satisfied customer.