Selling coins is deceptively complex. The value of a coin collection is not simply the weight of the metal — it is determined by date, condition, variety, and the current state of collector demand. Get this wrong and you can sell a coin worth £500 for £8. Get it right, and a tin of "old pennies" you were going to give to charity turns out to contain £300–£400 of collector coins.
This guide walks through the process step by step — from identifying what you have, to choosing where to sell.
Step 1: Do not clean the coins
Never clean coins before selling them. A cleaned coin is worth a fraction of an equivalent uncleaned example in the numismatic market. Collectors specifically prefer original surfaces — even with natural toning — over coins that have been polished, dipped in acid, or cleaned with abrasive. Even gentle cleaning with water removes microscopic surface detail that affects grade. Present coins exactly as found.
Step 2: Identify what you have
Before approaching any buyer, spend time identifying your coins. You do not need specialist knowledge for this — a reference book or online search can take you far:
- Read the obverse (portrait side) — the legend around the portrait identifies the monarch and often the date. Pre-decimal British coins always show the monarch.
- Note the date — typically on the obverse below the portrait or on the reverse. Date is the most important factor after metal type for determining collector value.
- Identify the denomination — farthing, halfpenny, penny, threepence, sixpence, shilling, florin (2s), half-crown (2s6d), crown (5s), half sovereign, sovereign.
- Note the metal — copper (red-brown), silver (white), gold (yellow). Silver British coins after 1920 are actually 50% silver; after 1947, they are cupro-nickel (no silver).
- Look for a mintmark — small letters on the reverse (H for Heaton mint, KN for King's Norton) indicate a branch mint, which affects value on some dates.
Step 3: Understand the difference between melt value and collector value
Pre-1947 British silver coins (pre-decimal) contain 50% silver. The silver in a pre-1920 British crown (28.3g) is worth approximately £7–£9 at current silver prices. But a key-date crown in good condition — say an 1847 gothic crown in EF — is worth £300–£600+.
Gold sovereigns contain approximately 7.3 grams of 22ct gold, worth around £450–£500 at current gold prices. A common-date George V sovereign in circulated condition sells for £490–£520. But a proof sovereign in original case from a rare year, or an early Victoria "shield back" sovereign in high grade, can be worth £800–£3,000+.
The lesson: metal content is the floor, not the ceiling. Every coin needs to be assessed for its numismatic value before selling.
The 1933 penny is one of the rarest British coins — only a handful were minted for ceremonial purposes. A genuine example in any condition is worth over £70,000. It looks identical to a common 1932 or 1934 penny to the untrained eye. This is an extreme example, but it illustrates why date-by-date assessment matters.
Step 4: Choose where to sell
Specialist buyer (Fair Vintage)
A specialist buyer assesses the whole collection — identifying key dates, rating grades, and pricing both for collector value and for bulk. No cherry-picking, no flat melt offer, no need for you to sort or present the collection in advance. One assessment, one offer, payment within 72 hours. Best for inherited collections, mixed lots, and anyone who doesn't want to manage individual sales.
Specialist coin auction
DNW, Spink, St James's Numismatics, and Morton & Eden hold regular numismatic auctions achieving strong prices for rare and high-grade coins. Seller's commission of 15–20% applies. For a genuinely rare coin in fine condition, auction may achieve a higher result than a direct sale — but the process takes weeks and the outcome is uncertain.
eBay
eBay has an active coin market, particularly for modern commemoratives and common pre-decimal silver. Final value fees of approximately 12.8% plus payment fees apply. Works well if you can identify and list individual coins accurately. Time-consuming for a whole collection, and fraud risk exists for higher-value items.
High street dealer / jeweller
Most high street dealers buy coins by weight, offering silver melt price or a flat rate per coin. They do not identify key dates or rare varieties. Selling to a high street dealer is appropriate only for bags of circulated common silver where you have confirmed no numismatic value exists. For any collection with unknown composition, avoid until assessed by a specialist.
Step 5: What to do with a mixed or unknown collection
If you have inherited a collection or found coins in an estate and you don't know what's there — this is the most common situation — the correct approach is:
- Photograph the collection — both overview photographs of albums and close-ups of individual coins that look old or unusual
- Send the photographs to a specialist — Fair Vintage will provide a preliminary assessment and identify anything that warrants particular attention
- Do not dispose of or sell any coins until you have an assessment — the most valuable coins often look indistinguishable from common ones
- Accept the specialist's offer or seek further opinions — you are under no obligation
Generally, no — modern commemorative coins issued by the Royal Mint are produced in large quantities and hold little premium above face value in the secondary market. The exceptions are genuine proof coins in original sealed packaging from the early years of commemorative issues, and some limited-edition gold and silver bullion coins. Standard circulating commemoratives (50p special designs, £2 coins) are worth face value only despite what some commercial websites suggest.
Foreign gold and silver coins absolutely can be valuable — American Morgan dollars, French Napoleons, South African Krugerrands, and world gold coinage all have active collector and bullion markets. Foreign base-metal coins (copper and nickel) are generally only worth face value to a bank in the country of origin, if that. Separate your foreign coins into gold/silver and base metal, and have the gold and silver assessed.
For common or moderately valuable coins, no — the cost of third-party grading (PCGS, NGC) typically exceeds the premium the grade certification adds. For a genuinely rare coin worth £1,000+, certified grading can add meaningful value by providing independent authentication. Your specialist buyer will advise if any individual coins in your collection would benefit from certification before sale.