P000163

Uploaded on:
13/02/2009 05:45:37
Type:
Digital Asset
File Size:
123.96 KB
Dimensions:
1000 x 724 pixels
4075 views 6 downloads
P number: P000163
Old photograph number: C03811
Caption: Processing of Scottish mica. Pitlochry Depot (January 1945). Perthshire. Cutting and trimming mica at the Sorting Factory.
Description: Processing of Scottish mica. Pitlochry Depot (January 1945). Perthshire. Cutting and trimming mica at the Sorting Factory. The split mica sheets are trimmed of all flaws, structural imperfections or, less serious, inclusions. The cutting knife is held at a low angle to the cleavage so the plates are consequently bevelled. The workers can clearly be seen using their knives. Processing of mica involved three stages, 1. rough cobbing, 2. splitting, 3. trimming. It does not undergo any other process of treatment or concentration before it is ready for use.
Date taken: 01/01/1945
Photographer: Fisher, W.D.
Copyright statement: Crown
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 294500
Y latitude/northing: 758500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 123.96 KB; 1000 x 724 pixels; 85 x 61 mm (print at 300 DPI); 265 x 192 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Best of BGS Images/ Images from the archives  

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