SLP98102402 - 24 OCTOBER 1998 - ST. LOUIS, MISSOURI, USA: The U.S. Postal Service has released a limited-edition souvenir envelope commemorating St. Louis Cardinal first baseman Mark McGwire's historic home run #62, which broke Roger Maris' 37-year-old single-season record, October 24. The envelope is affixed with a First-Class American Flag stamp, which is postmarked with the date McGwire hit #62-- September 8, 1998, and the city, state and ZIP Code, "St. Louis, MO 63155." UPI bg/wy/Bill Greenblatt