I got this mug on a trip to Washington, D.C. in the early 1980s. That it still looks as good as it does is due to how well it was glazed (the inside still looks new).
It says, with font matching the Declaration of Independence document, “We the People. . .” The lettering has been slowly fading through many dish washing cycles.
Joni Mitchell sang, “You don’t know what you’ve got till it’s gone”