Bill Koski Autographs
William John Koski (February 6, 1932 – July 12, 2014) was an American pitcher in Major League Baseball who played for the Pittsburgh Pirates. Listed at 6' 4" (1.93 m), 185 lb. (84 kg), he batted and threw right handed. Born in Madera, California, Koski was one of the many young players whose baseball careers were interrupted by military service in Korean War.
He starred at Modesto High School and, at age 18 in June 1950, signed a contract with the Pittsburgh Pirates, receiving a signing bonus of $6,000 (equivalent to $78,000 in 2024), just under the threshold to avoid being affected by the bonus rule.
He pitched in 13 games for the Pirates during the 1951 season. He posted a 0–1 record and a 6.67 earned run average, allowing 23 runs (20 earned) on 26 hits and 28 walks, while striking out seven in 27.0 innings of work.
Read more about Bill Koski on Wikipedia
Affiliate disclosure: When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Traded items with a signature of Bill Koski
The most expensive item with a signature of Bill Koski (BILL KOSKI(Died in 2014)Signed Trimmed Index Card w/8 x 11 Display w/Obit/Photo) was sold in April 2025 for $24.99 while the cheapest item (Bill Koski signed 1951 Pittsburgh Pirates MLB Vintage Index Card JSA) found a new owner for $0.49 in October 2012. The month with the most items sold (2) was December 2009 with an average selling price of $1.12 for an autographed item of Bill Koski. Sold items reached their highest average selling price in April 2025 with $24.99 and the month that saw the lowest prices with $0.49 was October 2012. In average, an autographed item from Bill Koski is worth $1.42.
Most recently, these items with a signature of Bill Koski were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | 1948 BILL KOSKI-PITTSBURGH PIRATES AUTOGRAPHED PC SIZED CARD W/ PHOTO-(d.2004) | $1.59 |  |
 | BILL KOSKI(Died in 2014)Signed Trimmed Index Card w/8 x 11 Display w/Obit/Photo | $24.99 | |
| Bill Koski (1932-2014) signed 3x5 | $1.24 | |
| Bill Koski (1932-2014) signed 3x5 | $2.09 | |
| Bill Koski (1932-2014) signed 3x5 | $2.47 | |
| Bill Koski (1932-2014) signed 3x5 | $2.11 | |
| BILL KOSKI (d.2014) AUTOGRAPHED BASEBALL CARD SIGNED 1951 PIRATES | $3.79 | |
| Bill Koski - 1951 Pittsburgh Pirates Signed 3 x 5 index card | $2.49 | |
| Bill Koski - Pirates - signed 3x5 | $0.75 | |
| Bill Koski Autograph Signed Card Pirates | $1.00 | |
| Bill Koski Autographed Personal Card | $13.50 | |
| Bill Koski signed 1951 Pittsburgh Pirates MLB Vintage Index Card JSA | $0.49 | |
| Bill Koski Signed 3.5x5 Photo Pittsburgh Pirates Debut 1951 Died 2014 | $1.24 | |
| BILL KOSKI, Pirates, 8 x 10 B & W Photo, Signed | $5.00 | |
| PITTSBURGH PIRATES signed BILL KOSKI 1951 | $0.99 | |
