Copper with Silver

Seneca Mine, Seneca, Allouez Township, Keweenaw Co., Michigan, USA
Ex. Dave Bergman
Miniature, 4.2 x 2.3 x 1.6 cm, 55.69 grams
Start Time: 12/19/2024 6:45:00 pm (CST)
End Time: 01/04/2025 6:30:00 pm (CST)
Time Left:
Current Bid: $40
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Minimum Bids and Increment Bids

The minimum bid for the first bidder is the starting bid of $10 (unless indicated otherwise in special higher-reserve auctions), and from there you can bid incrementally by one or more "bid increments" as you desire. The bid increments are:

$5 for bids of $10 to $50
$10 for bids of $51 to $500
$25 for bids of $501 to $1000
$50 for bids of $1001 to $5000
$100 for bids of $5001 to $10,000
$250 for bids of $10,001 to $25,000
$500 for bids of over $25,000

Item Description

A classic Copper "nugget" from Seneca Mine in the Upper Peninsula of Michigan showing a tiny bit of Silver on one end. The piece has an attractive antique patina.
Specimen weight is 55.69 grams.
This piece comes from the personal collection of Colorado mining legend, Dave Bergman. Dave is now retired from mining, but he worked for decades in various mines underground in Colorado, as a miner, mechanic, engineer, shift boss and foreman. His biggest claim to fame is that he was the foreman and the primary person in charge of mining and specimen recovery at the Sweet Home Mine in Colorado in the 1970s alongside his son-in-law, Rich Kosnar. This project what was the FIRST ever operation for specimen recovery at this historic locality. A full-page photograph of Dave can be seen mining underground at the Sweet Home in on page 58 of Peter Bancroft's book "Gem and Crystal Treasures". For reference, Dave is also the maternal grandfather of Brian Kosnar.

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Bidding History

Bid Amount Bid Time
$40 12/27/2024 9:54:51 pm (CST)
$35 12/24/2024 7:42:04 pm (CST)
$30 12/20/2024 1:33:20 pm (CST)
$25 * 12/20/2024 1:33:07 pm (CST)
$25 * 12/20/2024 1:33:07 pm (CST)
$15 12/20/2024 11:25:55 am (CST)
$10 12/20/2024 9:03:31 am (CST)
* Proxy Bid Battle: In the event of two customers inputting matching proxy bids, the leading bid goes to the earliest of the two proxy bids. Tie winners are shown in bold.