Bell Telephone Magazine Advert, 1957
Love it not only for the obvious Douglas Sirk-ish "Far From Heaven" design and color palette, but also for the pricing information.
Translating 1957 prices to 2011, here's the current cost for calls placed in 1957:
Baltimore to NYC: $4.42 for the first three minutes; $1.20 each additional minute.
Milwaukee to Des Moines: $6.02 for the first three minutes, $1.61 each additional minute.
Indianapolis to Memphis: $6.83 for the first three minutes, $2.01 each additional minute.
Los Angeles to Salt Lake City: $8.43 for the first three minutes, $2.41 each additional minute.
Chicago to Denver: $10.44 for the first three minutes, $2.81 each additional minute.