PAL

Ptolemaeus Arabus et Latinus

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% (the percent sign) is the placeholder for no, one or more than one character.
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At the beginning and at the end, these placeholders are superfluous.

in quibus non est dubietas ‘reliable’

Latin

References: Alm. Gerard: I.2:26, f. 2ra:44
Translation of:
Arabic: التي لا يشكّ فيها [Alm. MS Leiden: I.2:26, f. 3r:31-32]