The Musicians1597Free · sharp to 13.3 × 10.4 in at 300 dpi, uncropped
Christ on the Crossca. 1615–20Free · sharp to 10 × 13.3 in at 300 dpi, uncropped
Design for a Crucifix with the Virgin Mary, Saint Mary Magdalen, and Saint Johnn.d.Free · sharp to 8.6 × 13.1 in at 300 dpi, uncropped
Plate from "Divers Trophées" (Weapon Trophies after the Façade of Palazzo Milesi in Rome)1651Free · sharp to 11.8 × 8.8 in at 300 dpi, uncropped
Studies for an Altarpiece with the Virgin Enthroned, Attended by Four Saints (recto); Various Figure Studies, Some Possibly for a Deposition of Christ (verso)1530–35Free · sharp to 12.8 × 8.8 in at 300 dpi, uncropped
The Denial of Saint Peter1610Free · sharp to 13 × 9.7 in at 300 dpi, uncropped
The Holy Family with Saint Elizabeth and the Infant John the Baptist1520–25Free · sharp to 6.4 × 5.1 in at 300 dpi, uncropped
Title page of "Divers Trophées" (Weapon Trophies after the Façade of Palazzo Milesi in Rome)1651Free · sharp to 12 × 8.8 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 isThe Musicians, at 4,000 × 3,105 pixels: enough for a 13.3 × 10.4 in print at 300 dpi, or 26.7 × 20.7 in at poster sharpness.
The Met flags one of these as a collection highlight: The Musicians.
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.