The prototypical example of this is the U.S. posture along the DMZ between South Korea and North Korea.
Feminist pioneer Marlo Thomas, who played the perky and prototypical good girl Ann Marie on That Girl, wants you to be yourself.
They were almost the prototypical Republican voters: Older, white, professional, and highly civically engaged.
c.1600, from French prototype (16c.) and directly from Medieval Latin prototypus "original, primitive," from Greek prototypon "a first or primitive form," noun use of neuter singular of prototypos "original, primitive," from protos "first" (see proto-) + typos "impression, mold, pattern" (see type (n.)). In English from 1590s as prototypon.
prototype pro·to·type (prō'tə-tīp')
A primitive or ancestral form or species.