English: Postage stamp issued 1979 by Monaco commemorating the 100th anniversary of the Opéra de Monte-Carlo, picturing the "Allegory of Music" ceiling painted by Gustave Boulanger above the stage in the Salle Garnier. engraver Jumelet
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Postage stamp issued 1979 by Monaco commemorating the 100th anniversary of the Opéra de Monte-Carlo, picturing the "Allegory of Music" ceiling painted by Gustave Boulanger above the stage in the Salle Garnier.