A.S.Pushkin. Portraits souvenir sheet

The margins of the sheet feature a collage of drawings by artists of the early 19th century, Pushkins contemporaries.
In the left part there is "Ball at Prince Baryatinky's" (by G.G.Gagarin, early 1830s, aquarelle).
In the right part there is "A lunch at A.F.Smirdin's, a publisher" (by A.P.Briullov, 1833, sepia).