Good stamp.
The sable antelope (Hippotragus niger) is an antelope which inhabits wooded savanna in East and Southern Africa, from the south of Kenya to South Africa, with a separate population in Angola. Both sexes have ringed horns which arch backwards. In females, these can reach 61–102 cm (24–40 in), while in males they are 81–165 cm (32–65 in) long.