Page image — the source of record
Machine transcription
در عصر سلطنت اعلیحضرت همایونی المتوكل على الله محمد ظاهر شاه
Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting. How this was measured.