The “beard” sticking out of the Egyptian pharaohs' chins is strikingly reminiscent of poturu, a cone-shaped “lip plug” made of bone or wood and inserted through the lower lip of everyone in a small Amazonian Indian tribe (self-name: Zo'é - 'we','us'- as opposed to non-Indians, enemies; external name - Poturu, in honor of the distinguishing attribute of Zoe; the tribe counts to only 160 people, and contacts with the tribe were only established in 1987); poturu is inserted when a child reaches the age of 7-9 years (which is one of the most important ceremonies, and a rite of passage for children); poturu is gradually enlarged throughout one's life; most adults wear poturu of approx. 18 cm in length and 2.5 cm in width: https://www.survivalinternational.org/tribes/zoe .
Most of the South American Indians do not have beard and other face hair. Poturu for Zo'é likely serves as a 'substitute' of what they do not have, but have seen on some foreign teachers long time ago - and wished to have, too.
And - the Egyptian pharaos seem to have belonged to the same beardless race as the Indians (also having the very same distinct face characters)!
And what else is the POTURU other than Ital. POTERE, Port., Sp. PODER - the POWER ?!