Conclusion. Items appraised at the Seattle Convention and Trade Center include a pair of Federal-era chairs attributed to Salem, Mass., cabinetmaker Samuel McIntyre; a vase fashioned by arts-and-crafts potter Fred Walrath (1871-1921); and objects fro... (more)m the squadron of pilot Jimmy Doolittle. Also: host Dan Elias visits the Center for Wooden Boats on Seattle's Lake Union.