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.
Browse → Uṣūlnāmah-ʼi fut bāl barā-yi ṭalabahʼi maʻārif tarjamah-ʼi ʻAbd al-Ghafūr Khān bih taṣvīb-i Vizārat-i Maʻārif → page 25
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.