If you want to see possibly the only extant Bb soprano rothophone, head down to YouTube (at about 2:14).  (I think it's actually a saxoboe.)

 

Helen's article on an alto rothophone (lots of pics!)
And another alto
The baritone rothophone.

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If you want to change how many album pictures per page, use CTRL+ and CTRL- (Command + and Command - if you have a Mac).  80% looks great on my 4K monitor.