Hello Guest,
We actually have had another post regarding Carl Scheel Cassel pianos. I'm not sure if it deals with model 153, but maybe there is some information you will find useful. It had good dialogue between members, so I think there is some information you might enjoy.
http://www.mypianofriends.com/ive-just-bought-a-second-
hand-piano-119902.html
I hope this helps.
Best Wishes,
~B~