A Costumed Actor in Front of a CurtainFree · sharp to 9 × 11.5 in at 300 dpi, uncropped
A Rider and a Dead Horse in a LandscapeFree · sharp to 8.9 × 11.2 in at 300 dpi, uncropped
Christ Leaving the Tomb1869Free · sharp to 12.7 × 7.6 in at 300 dpi, uncropped
Don Quixote and Sancho Panza Entertained by Basil and Quiteria1863?Free · sharp to 10.3 × 12.9 in at 300 dpi, uncropped
L'Apparition1850–83Free · sharp to 10.1 × 12.8 in at 300 dpi, uncropped
La Sainte Bible (vol. 1 and 2)1866Free · sharp to 9.3 × 13.3 in at 300 dpi, uncropped
Male figure in classical costume1845–83Free · sharp to 10.6 × 10.2 in at 300 dpi, uncropped
Pauline Viardot Gambling at Baden-Baden1862Free · sharp to 11.6 × 9.2 in at 300 dpi, uncropped
Sketch of a Draper's or Upholsterer's ShopFree · sharp to 11.7 × 8.3 in at 300 dpi, uncropped
The Destruction of Leviathan1865Free · sharp to 7.7 × 9.7 in at 300 dpi, uncroppedReading the board
Each card shows the largest print the Met's file makes at 300 dpi without cropping — that's the sharpness you'd want for something you'll stand close to. The biggest file in this set isDon Quixote and Sancho Panza Entertained by Basil and Quiteria, at 3,090 × 3,878 pixels: enough for a 10.3 × 12.9 in print at 300 dpi, or 20.6 × 25.9 in at poster sharpness.
Every page has a size chart against standard frames, the museum record, and the frame and light that make a print look like it cost more than it did. The file itself is free. It always was.