[Binaural stethoscope] [realia] : 80.7.11. (ca. 1910-1929?)

ArchivalResource

[Binaural stethoscope] [realia] : 80.7.11. (ca. 1910-1929?)

1 stethoscope : metal and rubber ; 7.5 (spring) x 10.5 (ear piece) cm.

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Frank S. Betz Company

http://n2t.net/ark:/99166/w6np70h0 (corporateBody)

Chicago, IL. From the description of Collection, ca.1896-1930. (College of Physicians of Philadelphia). WorldCat record id: 122632892 ...