I believe this museum is in Old San Juan. I tried correcting this on Tripadvisor, but I got an email that said the listing cannot be changed.
So if you are looking for this museum in Rincon, you will not find it!
We had a day to spend in San Juan before a cruise and popped in to the museum after being directed there by a woman dressed in 19th century garb :) The museum is affordable (approx $6 per adult), air conditioned, has bathrooms, and is not to large, really the size of a large living/dining area. It's packed with neat...