Subject: Micrometers (Instruments) / Geographic Information: / Language: English - Blacklight Search Results

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1. Troughton and Simms filar micrometer

Creator:: Troughton & Simms, London
Collection:: Robert B. Ariail Collection of Historical Astronomy
Institution:: South Carolina State Museum

2. Dollond micrometer

Creator:: Dollond, John, 1706-1761
Collection:: Robert B. Ariail Collection of Historical Astronomy
Institution:: South Carolina State Museum