Columbia subject headings:
Art--Political aspects.
Courbet, Gustave, 1819-1877--Friends and associates.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Friends and associates.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Portraits.
Harvard subject headings:
Princeton subject headings:
Art--Political aspects.
Courbet, Gustave, 1819-1877--Friends and associates.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Friends and associates.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Portraits.