Fr 023 U.S.Dragoon,1847 FredericRemington sqs Frederick Remington (1861-1909)

The picture has something of this: cavalry, seated, equestrian, mammal, people, rider, wear, military, action energy, horse, man, jockey, saddle, horseback, two, soldier, sword.
Perhaps it’s a black and white drawing of a man riding on the back of a horse with a gun in his hand.