Yes, those are dry paper impressions. If you plate them you will likely find they are both from positions that were at the edge of the sheet. Better examples would have finer impressions and deeper color to contrast those areas where the ink didn't adhere to the paper.
I agree with Sinclair. They typically moistened a stack of sheets all at once. Then by the time they put the sheets near the bottom of the stack to the press, the edge areas were dried out more than this inner areas.
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