Advertisement for Evans Repeating Rifle with quote from Texas Jack
This is an advertisement for the Evans' Repeating Rifle, invented by Warren Evans, a Maine dentist. Texas Jack was often asked for his opinion on various rifles and revolvers, and his words were often used to sell those guns.
About the Evans, Jack said "It shoots like a house on fire! I can clean out a whole band of Indians alone with it. I shall recommend them wherever I go."