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Lot 57
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E. Howard & Co. and Hezekiah Conant Differential Gearing Mechanism
E. Howard & Co. and Hezekiah Conant Differential Gearing Mechanism
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E. Howard & Co. and Hezekiah Conant Differential Gearing Mechanism
20th century
the glass boxed display to demonstrate how the Hezekiah Conant patent worked to average two escapements
11 x 13 x 7 inches

    Condition:
  • The case with some tarnish, there is no source of power, the mechanism works as intended.

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by Fontaine's Auction Gallery
October 23, 2021 11:00 AM EDT
Pittsfield, MA, US

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Bid Increments
From: To: Increments:
$0 $249 $25
$250 $999 $50
$1,000 $2,999 $100
$3,000 $9,999 $250
$10,000 $24,999 $500
$25,000 $49,999 $1,000
$50,000 $99,999 $2,500
$100,000 $249,999 $5,000
$250,000 $499,999 $10,000
$500,000 $999,999 $25,000
$1,000,000 + $50,000