8170

1907 $20 High Relief PR64 NGC. After 24 Ultra Hig

Currency:USD Category:Coins & Paper Money / US Coins Start Price:30,000.00 USD Estimated At:1.00 - 1,000,000.00 USD
1907 $20 High Relief PR64 NGC. After 24 Ultra Hig
<B>1907<$20> High Relief PR64 NGC.</B></I> After 24 Ultra High Reliefs were produced in February and March 1907, Henry Hering (Augustus Saint-Gaudens' pupil and assistant) worked with Mint officials to prepare a second set of master dies and hubs in lower relief. Six pairs of working dies were produced that eventually struck the 11,250 coins we know today as the Wire Rim and Flat Rim High Reliefs. Two pairs of these working dies were used to also strike an unknown number of Satin Finish proofs. All High Reliefs were struck on the Mint's hydraulic presses, which were normally used to produce medals. Regular business strike High Reliefs required five blows from the hydraulic press to strike up. To bring up the extra detail on proofs, the planchets were struck six or seven times. David Akers estimated that somewhere between 20 and 25 proofs were struck, but did not speculate about the number of recognizable survivors today. Subtle yet significant differences distinguish business strikes from proofs (the specific striking characteristics are listed above on the PR62 example). This coin displays the sharpness of detail one would expect from a multiply-struck proof. There are also numerous swirling and horizontal striations in the fields, evidence that the dies were extensively polished before striking. Each side is bright and satiny with just the slightest overlay of reddish tinted patina. An exemplary coin and an important opportunity for the collector.