Because it doesnt show a caterpiller, a hedgehog or a gorilla. It also doesnt show a tractor, a tricycle, or shoes or anything other than a pyramid.
On a $1 US dollar bill.
USD $ 1 dollar bill
The unfinished pyramid on the back of an American $1 bill represents the country that is always building, always improving and getting better and thus, always slightly unfinished.
1776
MDCCLXXVI, which is of course the Roman numeral for 1776. The Latin phrase "Annuit Cœptis Novus Ordo Seclorum" around the pyramid means "Announcing the Birth of a New World Order".
It symbolizes the idea that the US will never be "finished"; i.e. that the nation will always continue to grow and change, never reaching a stopping point.
more than 1
The pyramid and the eye that flies above it are references to masonic concepts. Freemasons were an important part of early American society, so they are secretly honoured on the 1 dollar bill.
$100 bill, $50 bill, $10 bill or $1 bill
The Bahamian Dollar is pegged 1:1 with the US Dollar, so a $1 Bahamas bill is worth exactly $1 US Dollar.
The circle on the left of the bill pictures an unfinished pyramid with 13 steps. There is an eye within a triangle above the pyramid; light radiates from the eye. The circle on the right pictures the front of the Great Seal of the United States of America. It shows a bald eagle holding olive branches and arrows in its talons. See the Related Links below for pictures.
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