Brown Materials Co.

Brown Materials Co., based out of Shawnee, Oklahoma, is one of the few vintage silver refiners from the state.

  • Company Location(s): Oklahoma
  • Dates of Operation:
  • Known Bar Sizes: 1, 5, 10, 25, Odd Weight
  • Related Refiners:

Bars by

Brown Materials Co.

Brown Materials 10 oz – Picture Frame

Brown Materials Co.

  • Metal: Silver
  • Weight Class: ~10
  • Specific Weight: 10.00
  • Shape: Picture Frame
  • Configuration: Horizontal
  • Type: Cast
  • Occurrence Frequency: Very Very Rare
  • Misc.: Rainbow, Toner
Brown Materials 10 oz portrait vintage silver bar front

Brown Materials 10 oz. Portrait

Brown Materials Co.

  • Metal: Silver
  • Weight Class: ~10
  • Specific Weight: 10.00
  • Shape: Rectangle
  • Configuration: Portrait
  • Type: Poured
  • Occurrence Frequency: Very Very Rare
Brown Materials 10 oz

Brown Materials 10.00 oz.

Brown Materials Co.

  • Metal: Silver
  • Weight Class: ~10
  • Specific Weight: 10.00
  • Shape: Rectangle
  • Configuration: Horizontal
  • Type: Poured
  • Occurrence Frequency: Very Very Rare
Brown Materials 73.23 oz vintage silver bar front

Brown Materials 73.23 oz.

Brown Materials Co.

  • Metal: Silver
  • Weight Class: ~50
  • Specific Weight: 40.72
  • Shape: Rectangle
  • Configuration: Horizontal
  • Type: Poured
  • Est. Mintage Date: 1980's, 1981
  • Occurrence Frequency: Very Very Rare
  • Misc.: Crude Pour, Toner