Partnership letters 1959 - 1975 https://www.rbcpa.com/WEB_letters/WEB_Letters_pre_berkshire....
Berkshire letters http://www.berkshirehathaway.com/letters/letters.html
Partnership letters 1959 - 1975 https://www.rbcpa.com/WEB_letters/WEB_Letters_pre_berkshire....
Berkshire letters http://www.berkshirehathaway.com/letters/letters.html