Engraving depicting a microfilter: filar position-Micrometre, the type in general use in the late 19th century. Dated 19th Century

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Size: 4192px × 5003px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 19th, archival, archive, century, engraved, engraving, filar, filter, historical, history, illustrated, illustration, microfilter, micrometre, physics, position-micrometre, science