The images for the set were produced by the American Lithograph Company, New York, which was very involved in both securing players and producing images for use in the set. Not very much is known about this company. What is known is that many of the T206 portrait poses feature the work of Carl Horner. He was one of the most prominent baseball photographers in the early 20th century. Along with his contemporary, Charles Conlon, Horner brilliantly captured the classic images of our national pastime. Working from his Washington Street studios in Boston, Massachusetts, Horner was renowned for his famous portrait photographs of the baseball stars in the early 1900's. Horner published many of his studio portraits in the period of 1904-05. It appears that Carl Horner granted the American Tobacco Company permission to use his photographs on some of their baseball card inserts beginning in 1909. Several other baseball card issues from this same period also feature Horner portraits.
Multi-stage printing process resulted in missed stages - Many examples have been found with printing variations that clearly resulted from missing one or more stage in the printing process. From these, additional information can be surmised regarding the production process. There is a reference in the Neal Ball permission letter to the effect that the T206 cards were printed by the American Lithograph Company. The lithograph process involved a layered type of printing, where certain colors were added in different stages (layers). As can be expected with the printing of millions upon millions of cards, several examples have been found missing one or more of the color stages. Lithography was far more complicated than four-color printing, however it appears that four base colors were used in this process, and these could be combined (overlapped) to produce additional colors.
The following is a breakdown of the color layers for the T206 cards:
Evidence points to cards being printed in sheets. Many miscut cards have been identified that when considered together support the theory that the cards were printed on sheets. From observing miscuts, errors, and variations, we have evidence of vertical, horizontal, and sheet type patterns. By combining all the evidence, we come to the conclusion that these cards were indeed printed on sheets. While no complete sheets of T206 cards are known, the evidence is very strong that they existed in this form.