While facing his former team, the St Louis Cardinals, on July 6th 1980, Steve 'Lefty' Carlton set the Career Strikeout Record for southpaws.
In the bottom of the fourth inning he struck out Ken Reitz and Tony Scott in consecutive At Bats to tie and set the record that was previously held by Mickey Lolich
The feat made the Record Breaker subset for 1981 Topps.
The b-side of the 1981 Record Breaker cards sort of slack a little by placing all the achievements on the season end date of October 5th, a date which Carlton didn't even pitch. Also notice the by-line for the article is from Philadelphia - Which is incorrect for either date as the Phillies were on the road for both the Record Breaking game in St Louis and the final game of the season in Montreal.
Perhaps the article cites Philadelphia because the Photo of Lefty shows him in a home uniform, and what is with the batting helmet? - notice it is an old school helmet - no earflaps.
Intermittently in the 1980s Carlton held/shared the K record for all pitchers with Nolan Ryan. Topps produced a card in 1984 marking that accomplishment.
In 1976 Topps issued a similar card for Mickey Lolich who broke the Strikeout record which was previously held by Warren Spahn. Since 1981 both Lolich and Carlton have been passed by Randy Johnson who took over the southpaw K Record in 2004. Carlton still ranks 4th overall in Punchouts and 2nd among Leftys.
Sources and Links
Phungo HoF Index - Steve Carlton