Pro Set trading cards Browns Center Cody Risien, but the card was withdrawn early due to his retirement during training camp, also resulting in a short print. The most sought after variation from 1990 Pro Set is card #204 Fred Marion of the New England Patriots. This card is rather controversial because the card features San Francisco 49ers player John Taylor in the background and the belt from Taylor's pants came undone. The positioning of the belt gives the appearance that his private area is exposed, but it is just a shadow and the belt. Various cards in the 1990 offering have three variations.
How many angels can dance on the head of a pin? about how many could perch at the same time on the head of a pin"". Dorothy L. Sayers argued that the question was "simply a debating exercise" and that the answer "usually adjudged correct" was stated as, "Angels are pure intelligences, not material, but limited, so that they have location in space, but not extension." Sayers compares the question to that of how many people's thoughts can be concentrated upon a particular pin at the same time. She concludes that infinitely many angels can be located on the head of a pin, since they do not occupy any space there: