M0018415: Tonometer designed by Gustav Gaertner in 1899 and made by Schulmeister, Vienna

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Photograph of a tonometer in its case, an instrument for measuring blood pressure by a compression ring applied to the finger. It was presented to the Wellcome Historical Medical Museum in 1919 and accessioned in 1918 (accession number R11213). It is not held by Wellcome Collection.

M0018415: Tonometer designed by Gustav Gaertner in 1899 and made by Schulmeister, Vienna

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