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細節
A 19th-Century fruitwood monaural stethoscope,
inscribed W.B. 1899 -- 7in. (17.8cm.) long; and a rosewood monaural stethoscope with detachable plate -- 7in. (17.8cm.) long
See Illustration (2)
inscribed W.B. 1899 -- 7in. (17.8cm.) long; and a rosewood monaural stethoscope with detachable plate -- 7in. (17.8cm.) long
See Illustration (2)