The original is the museum file as published, bytes untouched. Cuts are cropped around a hand-set focal point. A scan that misses a tier by under one percent is upscaled that last step and marked so. Where the scan is too small for a tier, the cut is offered at the largest size the scan allows and marked native size.
Albrecht Dürer, The Four Horsemen, from The Apocalypse (c. 1498, printed 1511), woodcut.
Chester Beatty Library, Dublin.
Source.
Public domain.