John Bell was a Scottish traveler.
Travels from St. Petersburg to diverse parts of Asia, Journey to Pekin, ch. IIEdit
One of these hunters told me the following story, which was confirmed by several of his neighbours. That, in the year 1713, in the month of March, being out a hunting, he discovered the tract of a stag, which he pursued; at overtaking the animal, he was somewhat startled, on observing it had only one horn, stuck in the middle of its forehead. Being near this village he drove it home, and showed it, to the great admiration of the spectators. He afterwards killed it, and eat the flesh; and sold the horn to a comb-maker, in the town of Tara, for ten alteens, about fifteen pence Sterling. I inquired carefully about the shape and size of this unicorn, as I shall call it, and was told it exactly resembled a stag. The horn was of a brownish colour, about one archeen, or twenty eight inches long; and twisted, from the root, till within a finger's length of the top, where it was divided, like a fork, into two points very sharp.