- dans la maison de Frederick Douglass (1818-1895), sur son bureau
- National Park Service Museum Collections website (accessed July 27, 2018)
Website's information (accessed July 27, 2018):
The French sculptor was well known for his figures of animals, in particular, bears engaged in human activities. This cire perdue [lost wax process] sculpture on Mr. Douglass' desk in his study features two bears. One is doing dental work on the other bear seated in a dental chair. The dentist has a pair of pliers in one hand. The other hand restrains the seated patient bear.