Blood Measuring Device, from Kitab al-Hiyal al-Naficah (Book of Ingenious Mechanical Devices), Al-Jazari, Cairo, codex February-March 1354 AD, watercolor, ink – Aga Khan Museum – Toronto, Canada – DSC06505

Al-Jazari
Public domain
Wikimedia Commons
Exhibit in the Aga Khan Museum – Toronto, Canada. This work is old enough so that it is in the public domain. Photography was permitted in the museum without restriction.

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