A neat looking piano

This piano is 1954 Wurlitzer spinet. Yes those light colored panels are a vinyl type material with a pattern that sort of makes it look like stone. 

Hammer Reshaping

If your hammers have grooves like these it could help the tone of your piano immensely by having them reshaped. It gets rid of/diminishes the grooves and exposes a new layer of felt. The tiny grooves grab the strings for a split second dulling the tone of your piano.