Description:Cache of Roberto Clemente documents with relation to Major League Baseball Player's Association c.1969-70. Interesting grouping of documents related to Clemente as the Union player representative for the Pittsburgh Pirates to include: Clemente's personal copy of the 1970 Basic Agreement between the Player's Association and Major League Baseball (Roberto Clemente written at top of front cover in red); Several typewritten documents sent to Clemente and signed by MLBPA counsel Dick Moss; Telegram to Clemente from Marvin Miller; and (10) assorted typewritten letters sent to Clemente from the MLBPA. Includes letter of provenance from the Clemente family: Range EX-NM