Sorry for my slow mind but..... Are the instructions at the beginning of this thread for dissolving all the old crackled finish but leaving the nice patina? I know "cleaning" was discussed, just wanting to clarify that term in my head. I have several treadle cabinets that are in relatively nice shape (little scratching, veneer intact) but the finish is shot. Mine are all older Singer cabinets....probably 1920ish. Can I assume they were all varnished?