Antique Brass Bolt Calibration Set - Mahogany Base - Dated 1897

US $130

  • Medford, Oregon, United States
  • May 24th
THIS IS AN UNUSUAL ANTIQUE BRASS MACHINIST BOLT CALIBRATION SET. THE SET CONSISTS OF 7 SOLID BRASS PIECES IN A SOLID MAHOGANY BASE. THE LARGEST PIECE (BOLT) IS MARKED PAT'D JULY 6TH 1897 THE SMALLER PIECES ARE MARKED:       8 / 64,  10 / 64,  12 / 64,  14 / 64,  18 / 64  AND 20 / 64 THE LARGEST BOLT IS 1 7/8 INCHES IN DIAMETER - THE SMALLER 7/8 INCHES. THE MAHOGANY BASE MEASURES 4 INCHES BY 1 7/8 INCHES - 1 INCH HIGH. THIS SEEMS TO BE A WELL CARED FOR SET - I AM NOT A MACHINIST - SO MY KNOWLEDGE IS LIMITED.  THE THREADS DO SEEM TO BE IN GOOD ORDER - WITH THE EXCEPTION OF THE BOLT MARKED 8 / 64 - WHICH SEEMS TO HAVE A BIT OF ROUGHNESS TO THE THREAD. THANK YOU FOR YOUR INTEREST AND GOOD LUCK IF YOU DECIDE TO BID. PLEASE VIEW MY OTHER LISTINGS AS I HAVE NUMEROUS INTERESTING VINTAGE ITEMS UP FOR AUCTION.

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