This is a 1983 exhibition poster of the Henri Cartier-Bresson exhibit at the Montreal Museum of Fine Arts. The poster features the well-known Derrière la gare Saint-Lazare (Behind the Gare St. Lazare) photograph from 1932. An audio description of the image can be found here.
The 19”x28”(c.48x71cm) poster is mounted on light foam board and will ship flat. The poster is in very good condition only showing some minor wear.