Glass coach Meaning, Definition & Usage

Definitions
  1. a coach superior to a hackney-coach, hired for the day, or any short period, as a private carriage; so called because originally private carriages alone had glass windows. Eng. Smart.
    Glass coaches are [allowed in English parks from which ordinary hacks are excluded], meaning by this term, which is never used in America, hired carriages that do not go on stands. J. F. Cooper.

Webster 1913