The original, unaltered photo of the 2017 Women’s March in the District. An altered version appears in an exhibit at the National Archives. (Mario Tama/Getty Images)

The large color photograph that greets visitors to a National Archives exhibit celebrating the centennial of women’s suffrage shows a massive crowd filling Pennsylvania Avenue NW for the Women’s March on Jan. 21, 2017, the day after President Trump’s inauguration.

The 49-by-69-inch photograph is a powerful display. Viewed from one perspective, it shows the 2017 march. Viewed from another angle, it shifts to show a 1913 black-and-white image of a women’s suffrage march also on Pennsylvania Avenue. The display links momentous demonstrations for women’s rights more than a century apart on the same stretch of pavement.