Be sure to check the style is the correct one - and that more recent "Start & Play" levers are not used which are different.
Levers come in three sizes - small, medium, large - depending on their position on the harp.
Small - PD0095
Plinth / base size approx 29mm x 12mm
Cam width 5.27mm
0.5 mm gap
Suitable For : Older Salvi Harps