1933–1957

LOGO MISSING

1957–1989

SVG NEEDED

Designer:  Design Research, Inc.

Typography:  Custom

Launched:  February 1957

1964–1989

BETTER LOGO NEEDED

Designer:  Unknown

Typography:  Custom

Launched:  1964

1989–1997

Designer:  Bright & Associates

Typography:  Custom

Launched:  April 1989

1997–present

Designer:  Landor Associates

Typography:  Univers

Launched:  August 23, 1997