A very long time ago when I was a kid the King Tut coffin toured though the U.S.. IDK if it was the real deal or a reproduction. I think what you have is just a trinket from a museum. My father took us to a museum to see it. The local Reading city museum still has a woman mummy.
The Treasures of Tutankhamun (1972–1981)
3.1
United Kingdom
3.2
United States
3.3
I would have been less than 10 when this tour went through America.