White Rock, The Champagne of Waters - Color Advertisement Published in Puck, 1907
Letter from C.V. Rose, General Advertising at the Los Angeles Times to Truman C. Kuehn regarding the White Rock Bottling Company; On Verso - Letter from Truman C. Kuehn to A.D. McDonald Regarding White Rock Advertisement, August 1962
Letter from A.D. McDonald, President of the Coca Cola Bottling Company of Los Angeles to Truman C. Kuehn regarding White Rock Advertisement, 1962 August 30