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Mike Frey Slide Rules

Slide Rules and Other Things

Keuffel & Esser 4054 10″ Favorite Mannheim

  • Pre 1944
    • 4054 10″ Favorite Mannheim – 429
    • 4054 10″ Favorite Mannheim – 623
  • Post 1944
    • 4054 10″ Favorite Mannheim – 446303

Mike Frey Slide Rules
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