Artificial intelligent assistant

mantel-board

ˈmantel-board
  A wide shelf of wood, usually draped, fixed upon the mantelshelf.

1885 Instr. Census Clerks 1881, 53 Mantel Board Maker. 1887 D. C. Murray Old Blazer's Hero viii. 127 Dropping his elbows noiselessly on the mantel-board.

Oxford English Dictionary

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