Lid
Lid to drawer compartment. Labelled "Thyroid ext". Once contained desiccated thyroid or thyroid extract, refers to porcine (or mixed beef and pork) thyroid glands, dried and powdered for therapeutic use. Pork (or mixed beef and pork) thyroid preparations were developed in the late 19th century, and are still used today to treat hypothyroidism, the condition of having an underactive thyroid gland.
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