White ring with three alpha-numeric code :
note 1 : used codes are : number/letters "A, C, F, H, L, M, N, T, U, V, X" number OR number/number/letters "A, C, F, H, L, M, N, T, U, V, X" (on the right tarsus) and metal ring (on the left tarsus).
note 2 :