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Found matches in 2 records for sheikh of qatar.
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  1. Anonymous treatise on the linear astrolabe

    Anonymous treatise on the construction and use of the linear astrolabe (أسطرلاب خطّي), an instrument also known as 'al-Ṭūsī's Rod' (عصا ...

    11 images in record  Ref: IO Islamic 461, ff 2v-7v  Date(s): 1198
  2. Kitāb ‘aṣāh al-Ṭūsī wa-hūwa al-asṭurlāb al-khaṭṭī كتاب عصاة الطوسي وهو الأسطرلاب الخطّي

    Anonymous treatise on the construction and use of the linear astrolabe (أسطرلاب خطّي), an instrument also known as 'al-Ṭūsī's Rod' (عصاة ...

    38 images in record  Ref: Or 5479, ff 86r-104v  Date(s): 13th century