1878 7/8TF Strong Morgan Dollar Value Guide

The 1878 7/8TF Strong Morgan Dollar is worth anywhere from $150 in worn condition to over $15,000 for high-grade specimens. This fascinating “over-mintmark” variety represents a unique moment in American history when the U.S. Mint was rushing to correct the design of its brand-new silver dollar.

What Exactly Is the 1878 7/8TF Strong Morgan Dollar?

If you’ve just found an old silver dollar in a drawer, you might be looking at a piece of numismatic history. To quickly identify your find, you can use a free coin identifier app to check the tail feathers. The “7/8TF” stands for “7 over 8 Tail Feathers.”

When the Morgan Dollar was first minted in 1878, the eagle on the back had eight tail feathers. However, critics argued that American bald eagles actually have an odd number of tail feathers. The Mint quickly changed the design to seven.

Instead of throwing away the expensive steel dies already made with eight feathers, they simply engraved seven feathers over the top of the eight. The “Strong” variety refers to the fact that the underlying eight feathers are clearly visible poking out from beneath the new seven-feather design.

This specific variety is a favorite among collectors using CoinKnow to track their portfolios. Because these were “transition” coins, they represent the very first year of the most famous silver coin in American history.

How to Identify the “Strong” Variety on Your Coin

Not all 7/8 tail feather coins are created equal. In the world of coin collecting, there are “Weak” and “Strong” versions of this variety. You can determine the 1878 silver dollar value by looking at the tips of the feathers on the eagle’s tail.

On the “Strong” variety, you can clearly see the tips of the original eight feathers protruding significantly from the bottom of the seven new feathers. Using a magnifying glass or the high-resolution zoom in CoinKnow is the best way to verify this.

Look for 4-5 distinct tips appearing below the central tail feathers. If you only see faint traces, you likely have the “Weak” variety, which is still valuable but generally commands a lower premium than the “Strong” counterpart.

Current Market Value and Pricing Tiers

The value of an 1878 7/8TF Strong Morgan Dollar fluctuates based on the current price of silver and collector demand. However, because this is a rare variety, its numismatic (collector) value far outweighs its silver content.

For most casual finders, your coin will likely fall into the “Circulated” category. Even a worn coin is worth over $150 because of its scarcity. If the coin looks like it just came from the bank—with a bright, mirror-like shine and no scratches—the price skyrockets.

You can view the latest 1878 7/8TF Strong Morgan Dollar MS price data to see how much “Uncirculated” versions are currently selling for at auction.

Professional grading by agencies like PCGS or NGC is highly recommended for this variety. A jump from an MS63 grade to an MS65 grade can literally mean a difference of thousands of dollars. Always check CoinKnow to see recent realized auction prices before selling.

Factors That Affect the Price of Your Silver Dollar

Beyond the “7/8TF Strong” variety, several other factors influence what a dealer will pay you. Condition is king in the coin world. Even the slightest scratch on the face of Lady Liberty or a “cleaning” of the coin can ruin its value.

Never clean your coins! A dirty, original coin is worth significantly more than one that has been polished. Polishing creates microscopic scratches that professional graders can spot instantly, often reducing the value by 50% or more.

Luster is another factor. Original “mint luster” is the frosty glow a coin has when it is first struck. If your 1878 Morgan still has that satiny sheen, you are looking at a premium price point.

The VAM Varieties: Adding More Value

Serious Morgan Dollar collectors often look for “VAM” numbers. VAM stands for Van Allen-Mallis, the researchers who cataloged every known die variety of Morgan and Peace Dollars.

For the 1878 7/8TF Strong, there are specific VAMs that are even more desirable. For example, some varieties feature “Tripled Stars” on the edge or specific die breaks. If your coin is identified as a rare VAM, a collector might pay a massive premium on top of the standard variety price.

Using an app like CoinKnow helps enthusiasts identify these minute details. While it might look like a regular old dollar to the untrained eye, these tiny variations are what make the 1878 7/8TF Strong one of the most studied and sought-after coins in the entire Morgan series.

Always remember that rarity and popularity drive the market. The 1878 first-year issue has both. Whether you are a seasoned collector or someone who just inherited a small collection, identifying the Strong variety is the first step toward a potential windfall.

FAQ

Q: Why is the 1878 7/8TF Strong more valuable than a regular 1878 Morgan?

A: It is a “replacement” variety created due to a design error. Because it shows layers of two different designs (8 feathers and 7 feathers), it is considered a classic “error-adjacent” variety that is much rarer than the standard 7-feather or 8-feather coins.

Q: Where can I sell my 1878 7/8TF Strong Morgan Dollar?

A: For high-value coins (MS63 and above), reputable auction houses like Heritage Auctions or Stack’s Bowers are best. For lower-grade coins, local reputable coin shops or online marketplaces can work, but always check your CoinKnow appraisal first to ensure you aren’t being lowballed.

Q: How can I tell the difference between “Strong” and “Weak” 7/8TF?

A: Look at the tail feathers through a lens. If the extra feather tips are bold and easy to count, it is the “Strong” variety. If the extra tips are faint or ghost-like, it is the “Weak” variety. Strong varieties usually carry about a 20-40% price premium over Weak ones in similar condition.

Q: Does the mint mark matter for this variety?

A: All 1878 7/8TF Morgan Dollars were struck at the Philadelphia Mint, so they will not have a mint mark. If your coin has an “S” or “CC” on the back, it is a different variety entirely. Only Philadelphia (no mint mark) coins feature the 7/8TF transition.