HALOS - Home Appliance Label and Overlay System.
Starts & Stops Package Tactile Icon Description.
Start - the shape is a right pointing triangle.
Stop/Cancel - the shape is an X.
On/Off - the shape is a circle with a nub at the top.
Timer - the the shape is an hourglass, wide at the top, thin in the middle and wide at the bottom.
Clock - the shape is a circle with a cutout in the upper right. This represents a clock face with hands at 12 and 3.