Mike Armstrong Autographs
Mike Armstrong was a Major League Baseball pitcher who played for three teams over the course of his ten-year career. He was born on October 24, 1954, in San Jose, California, and attended Cerritos College in Norwalk, California. Armstrong was drafted by the Oakland Athletics in the 10th round of the 1976 Major League Baseball draft and made his Major League debut for the A's on June 12, 1980.
Armstrong was primarily used as a relief pitcher throughout his career, but he also made some starts. His best season came in 1983 when he was playing for the Cleveland Indians. That year, he appeared in 52 games and had an impressive 1.69 ERA. He also recorded 17 saves and struck out 64 batters in 74 innings pitched. Armstrong's success that season earned him a spot on the American League All-Star team.
Over the course of his career, Armstrong played for the Oakland Athletics, Cleveland Indians, and Minnesota Twins. He retired from baseball after the 1991 season with a career record of 45-60, a 4.36 ERA, and 37 saves. Although he never became a household name, Armstrong was a reliable and effective reliever for several seasons and made a significant contribution to the teams he played for.
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Current items with a signature of Mike Armstrong
These are the most current items with a signature of Mike Armstrong that were listed on eBay and on other online stores - click here for more items.
| Picture | Item Title | Price | Store |
 | 1985 Topps #612 Mike Armstrong Autographed Signed Card Auto | $4.99 |  |
Traded items with a signature of Mike Armstrong
The most expensive item with a signature of Mike Armstrong (Mike Armstrong 1983 Topps #219 Autographed KC Royals Card Vintage '80s Auto) was sold in July 2025 for $33.39 while the cheapest item (Mike Armstrong signed 3x5 card) found a new owner for $0.49 in September 2011. The month with the most items sold (5) was May 2025 with an average selling price of $6.76 for an autographed item of Mike Armstrong. Sold items reached their highest average selling price in July 2025 with $33.39 and the month that saw the lowest prices with $0.49 was September 2011. In average, an autographed item from Mike Armstrong is worth $3.50.
Most recently, these items with a signature of Mike Armstrong were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | 1981 Fleer 503 Mike Armstrong signed auto autograph dead centered blean bp MZ B | $16.50 |  |
| 1981 TCMA Hawaii Islanders 11 Mike Armstrong signed auto autograph ASC BXCP58 | $16.50 | |
 | 1983 Fleer #105 Mike Armstrong In Person Signed Auto 63709 | $4.44 | |
 | 1983 Fleer #105 Mike Armstrong In Person Signed Auto 65074 | $4.44 | |
| 1983 Fleer 105 Mike Armstrong signed auto autograph ballpoint MZ BXCP59 | $9.50 | |
 | 1983 Topps #219 Mike Armstrong In Person Signed Auto 62733 | $11.44 | |
 | 1983 Topps #219 Mike Armstrong In Person Signed Auto 63467 | $11.44 | |
| 1985 Fleer Mike Armstrong #120 New York Yankees AUTOGRAPH ON CARD GREAT PLAYER! | $11.00 | |
| 1985 Topps #612 Mike Armstrong AUTO New York Yankees Autograph Signed | $3.99 | |
| 1985 Topps #612 Mike Armstrong AUTO New York Yankees Autograph Signed | $4.99 | |
| 1985 Topps #612 Mike Armstrong Autographed Signed Card Auto | $6.31 | |
| 1985 Topps 612 Mike Armstrong signed auto autograph MZ BXCP56 | $7.50 | |
| Mike Armstrong ??MLB Debut: 1980 San Diego Padres??Autograph?? | $12.98 | |
 | Mike Armstrong Hand Signed 1981 Fleer San Diego Padres Autographed | $9.00 | |
 | Mike Armstrong signed auto 1984 Topps #417 card Kansas City Royals | $7.99 | |
Mike Armstrong signed Baseball Trading Cards by Manufacturer
