How do you find out how much old coins are worth without getting ripped off?

If you have a substantial amount of coins, you should get them appraised. Some coin dealers routinely do this, for estates and insurance valuation/verification. since they are there to set the market value, and not purchase the coins, you should get a legitimate value.

Flips and coin collecting supplies are Available on Amazon and eBay.

Once you have an appraisal (or 2), you have to understand the market. Many people and dealers are looking to buy coins BELOW MARKET VALUE. Their business model is based on being able to sell their coins at a profit, and absorb minimal loss if the base metal prices drop or the market for specific coins changes. For example, if a coin dealer offers you $60 for a coin appraised at $100, he is factoring in the risk of losing money on the coin, if he cannot resell it at an attractive price between cost and appraised value. No coin dealer will give you market value for your coins; many may only be worth the base metal price, if they are silver or gold. Circulated and damaged coins are considered “culls”, and are worth base metal value, at best. They are usually too worn or damaged to have a premium to a collector. One caveat is if you have a unique or rare coin; a coin dealer may make a higher offer for it – especially if he wants to inventory it until it comes up in value.

Your fear is that you will be taken advantage of by a sharp dealer who will offer you a price that is (10–20%) of the actual value, based on your lack of knowledge. This is often done with Gold buyers, who often give very low valuations on gold to people who “just want to turn it into cash”.

Unless you have a collection of old and desirable coins, like Morgan Silver Dollars, Silver and Gold coins, and others – your collection may be a lot of circulated pocket change with some old or unique coins in the mix. Circulated coins do not carry the value of mint state or proof coins; Coins are graded based on wear, appearance, and overall condition. See How are coins graded? Graded coins have verifiable value and are usually sealed by the grading organization, PGS or NGC.

If you don’t want to be bothered, you could put the collection up for auction, but auctioneers take a portion of the profit to promote their auctions and get your coins sold. Same with eBay, etsy, and Craigslist sellers. The Auctioneers and other sellers need to appraise the coins as well; that cost is included in their fee, as they need to set the minimum value for auction or resale.

There are books on how to sell your coins, on Amazon and eBay.

If you have a teenager in the family, you could offer him/her a stipend or commission to sort and estimate the value of the coins, based on eBay and internet values, from sites like Coin Trackers. They will learn a valuable skill, and you will have a much better idea what the coins are actually worth. You will also keep the costs in the family.

To recap:

  • Get an appraisal (especially if you have a lot of coins you suspect are valuable/collectible)
  • Determine actual price, as a negotiating tool with buyers or coin dealers making offers.
  • Consider engaging an auction house, eBay seller, or etsy coin shop to market your coins. Since they make a set commission, they are motivated to get you the maximum price

Thanks for the A2A! (this question originally appeared on Quora.

Disclaimer: I write about coins on my blog, Pocket Change Riches,  and collect coins I find interesting. I am also an eBay top rated seller, although most of my sales are not coins or bullion.

Best of Luck with selling your collection!

What is the proper way to clean coins?

By Alan Chenkin, Novice coin collector.
The general rule of thumb is to never clean coins. Ever.
This is particularly important with valuable coins, because a speculator might clean the coin to improve it’s worth – but most cleaning actually is visible to coin graders, and such attempts actually reduce the coins value. But there are times to clean a coin, and consider the best way to handle them – look at this from the internet:
How to Clean Coins – Wikihow
If you are considering selling the coins, definitely do not clean them; store them separately and bring them to a dealer for appraisal. If your coins have sentimental value, souvenirs of a trip, or a gift from a friend, preserve them in a holder or frame, and clean them if necessary – the sentiment is worth far more than the coin.
There is nothing wrong with wiping your coins with an athletic sock or polishing cloth, as these do minimal invasive damage to the coin. You may also want to polish a coin that is deteriorating due to corrosion or oxidation – consider it’s value before attempting this, cleaning can actually diminish the collectible value of the coin if done harshly or with strong chemicals.
After you polish your coins, reduce any further damage by keeping them in plastic holders or traditional coin flips.
A fun thing to do with some coins is to use them as jewelry. In that case, having a clean finish will be necessary, and the finished piece may be worth more than the coin itself.
Here is how you can put an amazing shine on a coin:

He uses Mothers Metal Polish and a Dremel tool with a buffing wheel. (Links to Amazon)

If you are unsure as to clean your coins or not, bring them to a coin dealer and ask! Most are helpful professionals, and have a wealth of knowledge. You can also get an idea from these sites on coin grading, especially when dealing with a coin you suspect has value:
How To Grade Coins Using the Coin Grading Scale – Coin collecting guide for beginners
The Westin St. Francis Hotel washes it’s coins.  Read about it on  NBC news  and cointalk. Hotel ruins millions of coins for collectors
Remember to have fun with your collection! Clean or not, sort your pocket change, and see where your coins have traveled from in the world!
Of course, if you don’t want to mess with those nasty, dirty, coins, just send them to me and I will “take care of them for you”.  Honest.
Thanks for reading my Blog! – Feel free to share!