P number: | P000162 |
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Old photograph number: | C03810 |
Caption: | Processing of Scottish mica. Pitlochry Depot (January 1945). Perthshire. Cutting and trimming mica at the Sorting Factory. Opened in August 1943, with a staff of six increasing to 36 in November 1943. |
Description: | Processing of Scottish mica. Pitlochry Depot (January 1945). Perthshire. Cutting and trimming mica at the Sorting Factory. Opened in August 1943, with a staff of six increasing to 36 in November 1943. 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 sheets are then sized ready for the grading process. 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: | 111.59 KB; 1000 x 721 pixels; 85 x 61 mm (print at 300 DPI); 265 x 191 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
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