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Ray mbi5124gp-b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero 8c3d275
{"orientation_deg": 270, "font_size_mm": 1.0127, "reading": {"source": "pin1_xy", "pin1_xy": [-3.5, 3.575], "dot": [-1.703, 3.153], "dot_agrees": true}, "legible_estimate": true, "natural_up": null, "overflow": false}