A Grant Featherston Expo '67 Talking chair designed 1966-67, paper and fabric manufacturer's labels, the curved high back and body of fibreglass and expanded rigid polystyrene, upholstered in wool and polyurethane. Height 113.5 cm. History: Grant and Mary Featherston's Talking chair was commissioned by Robin Boyd as seating for the Australian Pavilion at Expo '67, Montreal, Canada. Two hundred and forty examples were produced, each housing sound equipment within its base, which transmitted to the sitter through stereo earphones.