This disentanglement puzzle consists of two metal pieces bent so that there are arcs of circles at both ends of each piece. The pieces come apart. Both A. C.
National Museum of American History in Washington DC - Discover
The sad & sorry Smithsonian
National Museum of American History - Euan's Guide
National Museum of American History
Smithsonian overhauls American History Museum – Orange County Register
National Museum of American History, Washington, DC - Book Tickets
Smithsonian National Museum of American History – Adventures of
National Museum of American History in Northwest - Tours and
The entrance to the Smithsonian Institution, National Museum of