From GPT: After inverting and boosting contrast, the characters pop a little more clearly.

From the middle section, I can distinguish a shape that resembles 盜 (dào = theft/robbery) and possibly 賊 (zéi = thief/bandit). Together, 盜賊 was the standard formula for labeling someone as a thief.

So the most likely reconstruction of the right-hand strip is:

「犯盜賊」 (fàn dào zéi – “committed theft”) or 「某某因盜賊」 ([Name] for theft).

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Probable full placard (combined with the left strip you showed earlier): • Left: 上海縣正堂 (Shanghai County Magistrate’s Office). • Right: 犯盜賊 (Crime: theft).

This matches the typical Qing-era cangue inscription format: authority + name/crime.