The Lake of Zug1843Free · sharp to 13×8 in
Chatel Argent and the Val d'Aosta from above Villeneuve1836Free · sharp to 12×9 in
Dark Prison (Carcere Oscura)1790–99Free · sharp to 4×6 in
The Fort of L'Esseillon, Val de la Maurienne, France1835–36Free · sharp to 11×8 in
Tivoli, Villa of Maecenas and part of the Cascatelle1794–97Free · sharp to 13×7 in
View of London from Greenwich1825Free · sharp to 12×9 inReading 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 isView of London from Greenwich, at 3,735 × 2,820 pixels: enough for a 12.5 × 9.4 in print at 300 dpi, or 24.9 × 18.8 in at poster sharpness.
The Met flags one of these as a collection highlight: The Lake of Zug.
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.
House specials
J. M. W. Turner also has a hand-written page on the main board: The Fighting Temeraire.