Here’s the original baseball card reverse artwork for Jerry Koosman’s 1970 Topps The Sporting News All-Star card #468.
![](https://i0.wp.com/www.postwarcards.com/wp-content/uploads/2024/05/1970ToppsKoosmanArt-1.jpg?resize=336%2C490&ssl=1)
It was described in Ron Oser Enterprises’ December 2000 catalog as an approximately 5” x 7” pen-and-ink artwork.
Here’s an example of a final production card (via PWCC).
![](https://i0.wp.com/www.postwarcards.com/wp-content/uploads/2024/05/1970Topps468Koosman-1.jpg?resize=1024%2C639&ssl=1)