Category:Metallurgical assaying

Subcategories

This category has only the following subcategory.

Media in category "Metallurgical assaying"

The following 14 files are in this category, out of 14 total.

• 
  2 Touchstones.JPG 4,062 × 2,733; 925 KB
  
• 
  Assayer, 1916.jpg 845 × 1,208; 260 KB
  
• 
  Cargo of gold at Seattle waterfront, July 17, 1899 (MOHAI 6461).jpg 700 × 519; 63 KB
  
• 
  Cupels for assays and refining noble metals.jpg 2,592 × 1,944; 2.37 MB
  
• 
  Gold-mining and Assaying- A Scientific Guide for Australian Emigrants (IA goldminingandas00philgoog).pdf 691 × 1,062, 210 pages; 5.31 MB
  
• 
  Klondike Gold Rush Nat Hist Park Seattle seal 03A.jpg 1,105 × 1,081; 256 KB
  
• 
  Mt Boppy Gold Mine - Assay Department (Sydney Mail Wed 12 Jul 1905 Page 96 ).jpg 702 × 544; 125 KB
  
• 
  Patio Process.jpg 640 × 604; 36 KB
  
• 
  Photograph of the San Francisco Mint assaying division showing leather-topped tables and assay scales used to check... - NARA - 296598.jpg 3,000 × 2,418; 1.18 MB
  
• 
  Photograph of the San Francisco Mint assaying division showing leather-topped tables and assay scales used to check... - NARA - 296598.tif 3,000 × 2,418; 6.92 MB
  
• 
  Pierre de touche.jpg 2,278 × 2,132; 743 KB
  
• 
  School of Mines University of Utah 1901.jpg 1,221 × 970; 294 KB
  
• 
  Tombstone courthouse assay lab.jpg 2,145 × 1,950; 397 KB
  
• 
  Hallmarking Act 1973 (UKPGA 1973-43 qp).pdf 831 × 1,364, 40 pages; 899 KB