A plaster version of the statue was received by the IMA in 1972, and the bronze cast was made in 1976.

Once the plaster version was produced, Hedgecoe photographed it for the stamp image which is now familiar to many.

The statue's outstretched right wing is a symmetric plaster version of the original left one.

The piece, a plaster version, was sold at auction last fall for $3.6 million.

Rodin knew that by striking the plaster version with a hammer, he could prove his critics wrong.

In 1911, after the sculptor's death, a plaster version was exhibited at the International Fine Arts Exhibition in Rome.

Rodin made the first small plaster version around 1880.

A one-third-size plaster version, and a 1985 bronze cast of that plaster are in Tulsa, Oklahoma.

The full-size plaster version of The Protest was exhibited at the 1904 Louisiana Purchase Exposition, where it won a gold medal.

Another plaster version resides in Lincoln, Nebraska.