What a great collection of lettering guides, stencils. Only one has damage as you see in the photo...but none of the stencil area is damaged. There are four different sizes, I will call them large, medium, small and extra small.  There are four large, three medium, seven small, and seven extra small for a total of 21. Their numbers according to what is written on them is as follows:

LARGE 686, 1496, 1496-L and 1497

MEDIUM 685, 686, 688-L

SMALL 532, 533, 684, 686-L, 726, 1506, 1506-L

EXTRA SMALL 531, 683, 684-L, 722, 723, 724, 1514