Which letters are used in a riding school?

Answer 1

C, M, R, B, P, F, A, K, V, E, S, H are on the sides and X is in the center. There are also other letters on the centre line, including G which is between R and S on the centre line and D which is between P and V on the centre line. I expect that there are other letters in a school but it also depends on the size of the school as to what letters there are.