- 2006, legs de Dean Walker
- Museum's website, 17 March 2015
- 1909 Numismatic Circular
Numismatic Circular, May 1909, column 11389-11390 (accessible on line)
- 2003 Yates
David and Constance Yates, The Renaissance of Cast Medal in 19th Century France, ANS, Spring 2003, Volume 2 Number 1, on line at : http://ansmagazine.com/Spring03/RenMedal
Ponscarme became, in 1862, the official medallic portraitist of Napoleon III, who, on a beautifully detailed cast medal, is depicted on horseback being greeted by Baron Hausmann at the 1866 inauguration of the Boulevard de Strasbourg in Paris.