The 1878 Cuirasse Bodice…

.. as the new, long “armor-like” bodice was called, gave a clear and visual difference between the early and mid Victorian Eras, and what was evolving to become Late Victorian.

Sketch:  cuirasse (“curass” or “sheath”) bodice covered the torso, waist, and hips.  This one 1879-80, it started in about 1878