The ball opened with a country-dance, in which Mr Rivenhall, in honour bound, stood up with his cousin. He performed his part with propriety, she hers with grace; and Miss Wraxton, watching from a route-chair at one side of the room, smiled graciously upon them both.—Georgette Heyer, The Grand Sophy, chap. 9
Hey, internet! Any idea what makes it specifically a route-chair? Foldability/portability? Does it look like a ballroom chair? A director’s chair? A campaign chair?