This letter from Mickey Mantle, recalling his ‘outstanding experience’ at Yankee stadium, is delightfully obscene, as is this 1898 memo to all Major League Baseball teams to reduce cursing.

The 1898 memo was “so expletive-laden and obscene as to be ‘unmailable’ to its intended audience via the postal service, and so was delivered by hand to each of the League’s 12 clubs and their foul-mouthed players.”

(Thanks, Daring Fireball!)