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How Does Cleaning Influence Values?

by James Halperin

There I was, standing at another dealer's table, praying the man ahead of me wouldn't buy the coin he was looking at, so that I could. The coin in question was a bargain-priced 1796/5 small eagle $5 that I quickly re-wholesaled for about 30% over cost. The other guy passed because the coin had been gently cleaned. (Praise the Lord!)

Like many anecdotes, this one has a moral, which is that successful coin evaluators must create a "degree scale" for any imperfection or defect. Severity of cleaning, for example, can range from nearly undetectable to so harsh as to eliminate most of a coin's market.

First consider what can be reasonably expected. To illustrate, most Bust Dollars have been cleaned and I would imagine that in the case of many early coins, those who assemble most of the price guides assume that some cleaning may have occurred. So if the cleaning happened long ago and the surfaces have re-toned attractively, then the cleaning may be overlooked by most collectors. (Those who only buy examples with absolutely original surfaces should expect either to pay a substantial premium or to wait a long time between purchases.)

By contrast, it would strike me as foolish to purchase a modern silver commemorative that was even slightly cleaned unless the discount were substantial, since pristine specimens are readily available.

My point is that when assembling any coin collection, an intelligent collector will attempt to strike a balance between condition, availability and price. Even if cost isn't a consideration, perfection is seldom obtainable. What's far more important than deciding whether you're willing to accept a cleaned coin, is knowing whether or not you did. Over the coming weeks I will suggest methods that will help any collector, from beginner to expert, improve his or her skills at recognizing the various components of coin valuation. Including cleaning.

Read more about cleaning your coins...

James Halperin is co-chairman of Heritage Rare Coin Galleries and Heritage Numismatic Auctions, of Dallas, Texas, the world's largest rare coin dealer and auctioneer. Jim has been one of the top coin traders in the world for the past 25 years. 
Over the past five years Heritage Numismatic Auctions has sold more coins and currency at public auction than any other firm. 
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