Noun
a window of a store facing onto the street; used to display merchandise for sale in the store
a setting in which something can be displayed to best effect
Source: WordNetshow-window
We need more of the Office Desk and less of the Show Window in politics. Let men in office substitute the midnight oil for the limelight. Calvin Coolidge
A Piker always has his entire Stock of Goods in the Show Window. George Ade
it was a showcase for democracy in Africa Source: Internet