List of Keyboards 

Photo Credit: Nationalmuseet Wikicommons

Beautifully Decorated.  Unfretted. 

Credit: Uni of Leipzig

Unfretted.

Photo Credit: Quine Wikicommons

Photo Credit: Daderot Wikicommons

It has two bridges, an 8′ bridge and a 4′ bridge, the latter only for the lowest 15 keys.
The combination 8′ and 4′ makes a very brilliant bass

Picture from Wikicommons attr. Morn the Gorn

Unfretted Clavichord