1999 Delaware Quarter Errors and Varieties: Identification Guide

The 1999 Delaware quarter was the first release of the U.S. Mint’s 50 State Quarters Program and remains a popular entry point for new collectors. GetCoinHunt helps you search inventory from multiple coin dealers in one place, compare available examples, and create a wishlist alert when the right coin is not currently listed.

Design and history

The 1999 Delaware quarter centers on Caesar Rodney riding to Philadelphia. It belongs to the U.S. Mint’s 50 State Quarters Program, which released five state reverses per year in constitutional-ratification or admission order. The common obverse is the modified John Flanagan portrait of George Washington, adapted by William Cousins so the statutory inscriptions could move to the front and leave the reverse open for each state’s story.

Because “designer” can mean the citizen or committee behind a concept, the artist who refined it, or the Mint engraver who modeled it, this guide does not assign an individual credit unless the official Mint record does so unambiguously. The intended imagery — and the best baseline for attribution — is documented by the U.S. Mint’s program record.

The composition rewards close looking. Study the rider, horse, reins, and ground line — these are the fixed landmarks needed to compare a suspected variety against a normal coin. Preserve original surfaces: never polish a quarter to make a suspected feature easier to see. Cleaning creates hairlines and may destroy both collector value and diagnostic evidence.

Errors and varieties to know

The responsible headline for this issue is the Spitting Horse — a die crack running from the horse’s mouth. It is a die-state collectible, not a separate U.S. Mint design, and should not be marketed as a rare variety.

That does not mean errors cannot exist. NGC has documented State Quarter errors such as wrong planchets, clips, off-center strikes, brockages, missing clad layers, struck-through pieces, and rotated dies. Those are individual manufacturing accidents that can occur on nearly any design — they are not automatically recurring Delaware varieties.

The distinction matters when you’re comparing listings:

• A die variety repeats on every coin struck by the same altered or doubled die.
• A mint error results from something going wrong while one coin is made — for example, an off-center strike or a quarter struck on the wrong planchet.
• Post-mint damage happens after the coin leaves the press and is not a Mint-made feature at all.

NGC’s VarietyPlus overview states that the only two significant varieties it recognizes across the entire 50 State Quarters series are the 2004-D Wisconsin Extra Leaf High and Extra Leaf Low. Its separate State Quarter error gallery documents genuine manufacturing errors, but also illustrates why a suspected feature should be described by its minting mechanism rather than by an internet nickname before you pay a premium for it.

How to examine a 1999 Delaware quarter

Begin with the date and mint mark. Philadelphia and Denver circulation strikes carry P or D; San Francisco S coins were made as proofs, including clad and silver versions.

Use diffuse light, then rotate the coin beneath it. A 5x to 10x loupe is enough for initial screening — more magnification does not repair a soft photo or weak strike. Compare both sides with a problem-free example from the same issue:

• Raised, rounded, repeatable features may come from the die.
• Incuse cuts, displaced metal, bright scrapes, flattened rims, and random dents point toward damage.
• Shelf-like flat doubling commonly indicates machine doubling, not a doubled die.
• Missing letters can result from grease, wear, abrasion, or a hit, so inspect the surrounding metal too.

If the coin appears off-metal, record its weight on a scale accurate to 0.01 gram, plus diameter, thickness, edge color, and orientation. A normal copper-nickel clad quarter is about 5.67 grams and normally exposes a copper-colored core at the edge. Do not rely on weight alone — wear, corrosion, and manufacturing tolerances all matter. Photograph the whole obverse, whole reverse, edge, and close-up in the same lighting.

For a valuable-looking discovery, seek attribution from a specialist or certification from a major grading service before treating any price claim as reliable.

Buying considerations

Certified versus raw coins

A certified coin has been authenticated, graded, and sealed in a holder by a third-party grading service such as PCGS or NGC. A raw coin is sold without that certification.

Before purchasing a certified coin:

• Confirm that the holder is from a recognized grading service.
• Verify the certification number through the grading service’s official website.
• Compare the holder’s photographs, when available, with the coin being offered.
• Remember that counterfeit grading holders also exist.

Understanding grades and condition

Most 1999 Delaware quarters in the marketplace are common in circulated grades. Value concentrates in high-grade uncirculated examples with strong luster and no distracting marks, and in certified proofs. When comparing listings, look at:

• How clearly the rider, horse, and lettering are struck
• Remaining luster on uncirculated examples
• Marks, scratches, rim damage, or discoloration
• Whether the assigned grade is supported by a recognized grading service

Problem coins

Watch for listings that describe cleaned, improperly cleaned, scratched, bent, damaged, corroded, environmental damage, or altered surfaces. Problem coins are sometimes placed in holders with a details grade rather than a standard numerical grade — they can be a less expensive way to own the coin, but you should understand the stated problem and compare the asking price accordingly.

Suggested search terms and filters

Begin with a broad search: “1999 Delaware quarter,” “1999-P Delaware quarter,” “1999-D Delaware quarter,” or “1999-S Delaware proof quarter.”

Then narrow the results with terms that reflect your collecting goal:

• By mint mark: P, D, or S (proof)
• By grade: circulated, MS60-MS70, PR60-PR70
• By certification: PCGS, NGC, or “certified Delaware quarter”
• By feature: “Spitting Horse” die crack (described accurately, not marketed as a Mint-recognized variety)

Availability and pricing notes

Coin availability can change quickly. Listings and asking prices do not necessarily represent completed-sale values — compare multiple examples, consider each coin’s grade and surface quality, and review recent market information before purchasing.

GetCoinHunt does not guarantee that every listing is authentic, accurately graded, or fairly priced. Authentication, grading, pricing, return policies, and fulfillment remain the responsibility of the dealer or marketplace offering the coin.

How the GetCoinHunt wishlist alert works

1. Search for the coin. Enter “1999 Delaware State Quarter” to search participating dealer inventory.
2. Review the available matches. Compare listings by grade, certification, condition, dealer, and asking price.
3. Add the search to your wishlist. If the right example is not available, save “1999 Delaware State Quarter” as a wishlist item. Add grade, grading-service, or price preferences when those options are available.
4. Get notified about new matches. When new dealer inventory matches your wishlist, GetCoinHunt sends an alert so you can review the listing before it disappears.
5. Evaluate the coin before buying. Open the dealer’s listing, verify the certification and photographs, read the complete description, and review the seller’s terms.

Frequently asked questions

What is the “Spitting Horse” variety?

A die crack running from the horse’s mouth on some 1999 Delaware quarters. It is a collectible die-state feature, not a Mint-recognized design variety, and should be priced modestly relative to genuine manufacturing errors.

Are there any officially recognized rare varieties for the Delaware quarter?

No. NGC’s VarietyPlus overview recognizes only the 2004-D Wisconsin Extra Leaf High and Extra Leaf Low as significant varieties across the entire 50 State Quarters series.

How do I tell a die variety from a mint error or damage?

A die variety repeats on every coin struck from the same die and shows raised, rounded, repeatable detail. A mint error is an individual manufacturing accident, such as an off-center strike or wrong planchet. Post-mint damage happens after the coin leaves the Mint and is not a genuine feature.

Is a 1999 Delaware quarter worth much?

Most circulated examples are common and inexpensive. Value is concentrated in high-grade uncirculated coins, certified proofs, and coins with a verified genuine manufacturing error.

What if no suitable coin is currently available?

Add “1999 Delaware State Quarter” to your wishlist below. You’ll be notified when newly detected dealer inventory matches your search.

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