The ancient Egyptian Censer pot, (the Incense burner: pot) is most commonly seen in Ancient Egyptian iconography as an offering, held in hand by the offering person or god.
An alternative, a censer pot is shown with a burning flame, or a flickering cone of smoke above; the censer pot is trapezoidal in shape often, and also often with curved-inward sides, (a flared-out flat top).
In portrayed scenes with the arm, the offerer, most often the pharaoh offering to the god, is shown adding incense pellets from a small storage box at the base of the arm.
Incense has a long history in Ancient Egypt, as well as the Mesopotamian cultures.
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