NEW YORK (AP) -- Three early casts from Auguste Rodin's masterpiece "The Gates of Hell" will be featured at a New York City auction.
Sotheby's says "The Thinker" could fetch up to $12 million on May 7.
The full-scale sculpture was commissioned by publishing magnate Ralph Pulitzer in 1906 and made under Rodin's supervision.
A later cast sold for just under $12 million in 2010.
The other works are "The Kiss" from 1909 and "Ugolino (oo-goh-LEE'-noh) and His Children" from 1883.
They're owned by a private collector.
"The Gates," based on Dante's "Inferno," was never fully realized. Philadelphia's Rodin Museum owns the first bronze cast of "The Gates."
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.