細節
A precision balance,
the grey-enamelled frame supporting the aluminium beam mechanism, signed William A. Webb Ltd., London, to weigh 20kg., with brass pans and a set of chromium-plated cylindrical weights, 5kg.-200g., the balance on wood plinth base -- 33½in. (85cm.) wide
the grey-enamelled frame supporting the aluminium beam mechanism, signed William A. Webb Ltd., London, to weigh 20kg., with brass pans and a set of chromium-plated cylindrical weights, 5kg.-200g., the balance on wood plinth base -- 33½in. (85cm.) wide