 East Newark Industrial Center |  East Newark Industrial Center |
 1968 Annual Report |  SILVALOY Brazing Alloys Brochure |
 Plainville, Massachusetts Plant |  Roselle Park, New Jersey | 1985 |
 Engelhard Press Photo | 1974 |
- Biography
- DEFINITIVE PAGES
- ENGELHARD
- JOHNSON MATTHEY
- ARIZONA ASSAY OFFICE
- BUNKER HILL COMPANY
- BURMA CORPORATION, LTD.
- CASCADE REFINING, INC.
- CONSOLIDATED MINES & METALS
- DAVID C. DAVIS CO.
- DRAPER MINT
- DUGAN & HELTERBRAND CO., INC.
- EAGLE MINING COMPANY
- EMPIRE INTERNATIONAL, INC.
- HARRINGTONS METALLURGIST PTY
- HOFFMAN AND HOFFMAN
- HOMESTAKE MINING COMPANY
- HOOVER & STRONG, INC.
- INTERNATIONAL VAULTS REFINING
- JACK HUNT GOLD & SILVER
- KALGOORLIE BULLION EXCHANGE
- LEADVILLE MINE DEV’T COMPANY
- NEVADA SILVER COMPANY
- PACIFIC BULLION EXCHANGE
- THE PERTH MINT
- PHILLIP J WILLAMS [PJW]
- S. R. MITCHELL & CO. PTY LTD
- SILVERTOWNE L.P.
- SIMMONS REFINING COMPANY
- SPOKANE BULLION, INC.
- THE WASHINGTON MINT
- THORNE MINING & REFINING CO.
- W. H. FOSTER, INC.
- WEST COAST REFINING, INC.
- WESTERN MINT, INC.
- WESTERN STATES REFINING
- WESTON & COs MINE
- ENGELHARD
- COUNTERFEITS
- Assay | Laboratory Research
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- HOMESTAKE MINING COMPANY
- Other Bars & Rounds
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