"Pin Up Girls ....from the 1920's to the 2000's "

A pin-up girl (or boy), also known as a pin-up model,
is a model whose mass-produced pictures see wide appeal as popular culture.
Pin-ups are intended for informal display, e.g. meant to be "pinned-up" on a wall.

Pin Up's are usually fashion/glamour models & or actresses.

The term pin-up may also refer to drawings, paintings, and other illustrations done in emulation of these photos (see the list of pinup artists). The term was first attested to in English in 1941; however, the practice is documented back at least to the 1890s.

The pin-up images could be cut out of magazines or newspapers, or be from postcards or chromo-lithographs, and so on. Such photos often appear on calendars, which are meant to be pinned up anyway. Later, posters of pin-up girls were mass-produced. They became an instant hit.

Many pin-ups were photographs of celebrities who were considered sex symbols. One of the most popular early pin-up girls was Betty Grable. Her poster was ubiquitous in the lockers of G.I.'s during World War II. Other pin-ups were artwork, often depicting idealized versions of what some thought a particularly beautiful or attractive woman should look like. An early example of the latter type was the Gibson girl, drawn by Charles Dana Gibson. 

50 years of American PIN UPS

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here are some links to the most popular pin ups of our time:

1920's
Gloria Swanson
1930's
Greta Garbo
Jean Harlow
Ginger Rogers
Marlene Dietrich
Mae West
1940's
Veronica Lake
Carmen Miranda
Bette Davis
Lana Turner
Ava Gardner
1950's
Betty Grable
Marilyn Monroe
Bettie Page
Brigitte Bardot
Jayne Mansfield
1960's
Ursula Andress
1970's
Barbi Benton
Farrah Fawcett
Raquel Welch
Julie Newmar
1980's
Kelly LeBrock
Christie Brinkley
Samantha Fox
1990's
Carmen Electra
Cindy Crawford
Claudia Schiffer
2000's
Dita Von Teese
Masuimi Max


Pin-ups are also referred to as cheesecake, the male counterpart being beefcake