May 17, 2013
On Friday, May 17, 2013, the President signed into law:
H.R. 1071, which specifies the size of the blanks to be used by the Department of the Treasury in the production of gold and silver National Baseball Hall of Fame commemorative coins.
Barack Obama, Statement by the Press Secretary on H.R. 1071 Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/309508