OK, here is a two part question. The first part is:
What is the thing in the picture?
The second part is that I would hazard that most all of you have seen a picture of one of these at some time. Where would that most likely have been. Hint: it would have been on something that was made for nearly 30 years in the 1940's, but there were a lot of them and they were quite common and long lived, hence you have probably seen one at some time.
I see them in Roman movies. State of the union addresses. Some say U.S. used them early to portray unity, but what it really symbolizes is executive branch power.
Benito Mussollini got a lot of mileage off this symbol, and the socialist dictatorship resulting from this is forever linked to the name.
Notwithstanding the antics of the "Paisano from Predappio," the official mace of the US Senate is one of these devices. It is occasionally displayed by the Sargeant At Arms to Senators who are out of order while the Senate is in session. It is normally on display to one side of the dais in the Senate Chamber while the Senate is in session.
Two already have it. The answer is fasces. Another place that you will see it is on the back of the "mercury dime", which was made from 1916 until 1945. I have seen it many times on one of those, but never really looked at it to see what it was.