[bjerome]

obcbeatle, take a look at Bob Rusch's signature the bottom right signature of the bottom photo. Do you see how the stampings press around the stitches of the ball. A pen would not do that. Most of the signatures have the same darkness as the others. Most team balls do not have that as not all players use the same pen pressure when writing. You can also see especially in Johnny Logan's signature. The loop in the J is a dead giveaway that this is a stamped ball.