Creator: Troughton & Simms, London / Date: 1880 - Blacklight Search Results

Start Over Creator Troughton & Simms, London Date 1880

1. Troughton and Simms filar micrometer

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

2. Troughton & Simms 3.125 in. refractor with filar micrometer attached

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