My reply for new plastic key tops would be to first ask Schaff if
they have the Yamaha Ivorite key tops available, and if not then call
Yamaha.  These are oversize and must be trimmed to fit an American
Piano.  Something about that silly little millimeter.

Schaff does have a ton of parts not in their catalog.  Hope others are
asking for a new catalog from them when they order.  My 1976 one is a
little out of date.

Don Teach, Shreveport Music Co
1610 E. Bert Kouns, Shreveport,  LA  71105