(((bruces remarks: I confess myself deeply puzzled by this brief squib in Byrn's book, which seems to refer to a physical transfer system which was common in 1900 and now utterly forgotten. "Cash carriers?" "Whisking little cars?" The oddest aspect is Byrn's complete offhandedness regarding this technology, which he seems to regard as a commonplace. It can't be a pneumatic tube cash conveyor, as it seems highly unlikely that the capsules in a pneumatic tube system could be described as "little cars." Can anyone offer a suggestion as to what Byrn is talking about?)))
"Step into any of the great department stores and the genius of the inventor confronts you in the *cash carrier* whisking its little cars back and forth from the cashier's desk to the most remote corners of the great building. The first of these mechanical carriers adapted for store service was patented by D. Brown, July 13, 1875, No. 165,473. Not until about 1882, however, was there any noticeable adoption of the system, when practical development was given in Martin's patents, No. 255,525, March 28, 1882; No. 276,441, April 24, 1883, and No. 284,456, September 4, 1883."