From Vogue, 1 September 1959-

'Immediate Suiting: Coppery Tweed $265- This up-to-date tweed shows its true metal in city surroudings. Its new tawny colouring is on the coppered side. Its shape, thanks to Ben Zuckerman, is a triumph of long, trumpeting line, deep crushed-leather belting, and wide spread collaring. In French Wool tweed, also solid black English tweed. Size 10-16.'

Compare with this suit- which I believe is the above mentioned black tweed version.