By some strange turn of events, I now have four Tanzbär 28-note roll
playing accordions in the shop for repair.  I made the mistake of
playing one of them to my 83-year-old uncle who was enthralled but
unfortunately unable to play it.  I showed him the Mechanische
Musikinstrumente website and now he wants one of those instruments:

https://www.ziehorgel.de/produkte/harmonika?lang=en 

Hopefully, someone out there has one they no longer play and are
willing to sell so I won't have to order one from Germany.   I have
friends going to the Union Phonograph and Mechanical Music show and
will be around at the AMICA International Convention in Seattle if
there are any available for sale and pick up there.  Shipping could
always be arranged as well.

Kurt Morrison
Tacoma, Washington