#4741 Bulgaria - Worldwide Fund for Nature: Eurasion Wolf S/S (MNH)
2015 Worldwide Fund for Nature, Souvenir Sheet of 4, #a-d. Designs: Canis lupus lupus (Eurasion Wolf): a, 65s, Adult and three pups. b, 80s, Wolf with head lowered. c, 1.40 l, Wolf with head raised. d, 3 l, Four wolves.