A beam balance by Griffin in glazed mahogany case - 17 5/8in. wide; another by Oertling in case; and a torsion balance by Baird & Tatlock (3)

細節
A beam balance by Griffin in glazed mahogany case - 17 5/8in. wide; another by Oertling in case; and a torsion balance by Baird & Tatlock (3)