Evidence status: DOCUMENTED — meaning disputed
Hidden beneath the mast of a ship, where nobody was expected to spend it, might be a coin.
Sometimes several.
Modern navies still repeat the ritual.
The obvious question is why money was placed somewhere it could never easily be used.
One answer involves good luck.
Another involves the dead.
The Short Answer
Placing coins beneath a ship's mast is a genuine and remarkably old maritime custom known today as part of mast stepping.
Archaeologists have discovered coins associated with the mast steps of ancient Roman vessels, and the practice survived into later wooden sailing ships. Modern naval vessels continue versions of it, usually sealing coins and commemorative objects beneath or within the mast structure.
The most famous explanation says the money was provided so sailors lost at sea could pay Charon, the mythological ferryman who carried the dead into the underworld.
That interpretation is plausible and fits ancient funerary traditions, but it is not the only explanation archaeologists have proposed. The coins may also have served as votive offerings asking divine protection for the vessel.
What is certain is the object.
What remains debatable is exactly what its earliest builders believed it would do.
What We Know
“Mast stepping” sounds as if somebody is climbing onto the mast.
It actually refers to installing or positioning the mast into its supporting structure — its step.
On wooden sailing ships this was a crucial moment.
Without the mast, the vessel was a hull.
Once the mast was stepped, the ship was much closer to becoming a working sailing vessel.
Coins have been found beneath ancient mast steps.
One particularly important example comes from the Roman vessel known as Blackfriars I, dating to around the second century AD, where a coin was discovered in association with the mast step.
Maritime archaeologists have identified other examples, demonstrating that the practice is far older than the modern naval ceremony.
The custom also continued into much later ships.
Coins were placed beneath the masts of USS Constitution, one of the original frigates of the United States Navy.
And the ritual survives today even though modern warships no longer depend upon enormous wooden masts in the old sense.
Instead, coins, crew lists, medals and other objects may be sealed into a box or time capsule and placed beneath a modern mast structure.
How It Became a Habit
Shipbuilding has always attracted ceremony.
A vessel is expensive.
Its construction takes enormous labour.
And when it is finally launched, people's lives will depend upon it.
That makes the moment when a ship becomes structurally complete a natural place for ritual.
Coins are especially useful ceremonial objects.
They are small.
Durable.
Easy to date.
Symbolically valuable.
And they can represent the ruler, state or society that issued them.
A coin placed permanently inside a ship therefore works both as an offering and as a tiny historical signature.
Modern mast-stepping ceremonies have made that last function explicit.
Coins and mementoes are often selected specifically because they represent the ship, crew, namesake or date of construction.
The ancient charm has become partly a time capsule.
The Story Everyone Tells
The most famous explanation begins not aboard a ship, but in the world of the dead.
In Greek mythology, Charon ferried dead souls across the river separating the living from the underworld.
Ancient burial customs sometimes involved placing a coin with the deceased, commonly interpreted as payment for the ferryman.
According to the maritime version, shipbuilders placed coins beneath the mast for essentially the same reason.
If the ship sank and the sailors died at sea, the money would already be aboard.
The crew would therefore have the price of their final crossing.
Modern U.S. Navy accounts still repeat this as the traditional explanation for mast-stepping coins.
It is an extraordinarily fitting story.
Sailors receive one final fare for one final voyage.
What the Evidence Actually Says
Coins beneath ancient mast steps are real archaeological evidence.
The Charon explanation is an interpretation.
That distinction matters.
Ancient people deposited coins and other objects in buildings, graves, temples and construction sites for many reasons.
A coin beneath a mast might represent payment for the dead.
It might be a votive offering.
It might ask a god for safe passage.
It might mark the completion of construction.
Different builders may even have understood the custom differently.
The U.S. Navy itself acknowledges more than one explanation, including the possibility that the deposit functioned as a sacrifice or request for divine protection.
Naval historian accounts have also noted other practical or symbolic theories, including providing emergency money for a replacement mast.
None has been established as the universal explanation.
So:
DOCUMENTED: Coins have been discovered beneath or associated with the mast steps of ancient ships.
DOCUMENTED: The practice continued through later sailing vessels.
DOCUMENTED: Modern navies still perform mast-stepping ceremonies involving coins and commemorative objects.
PLAUSIBLE: The coins may have echoed the ancient practice of providing payment for Charon.
PLAUSIBLE: They may instead, or additionally, have functioned as votive offerings for protection and good fortune.
DISPUTED: One universal meaning for every mast-step coin cannot be established.
Different Elsewhere
The modern ceremony has evolved.
Wooden ships allowed coins to be physically placed beneath the mast.
Steel warships require different arrangements.
On modern American naval vessels, commemorative items may be enclosed inside a box and welded into position beneath the mast.
During a 2019 mast-stepping ceremony aboard USS George Washington, photographs, coins, a crew roster and part of the old mast were sealed into a time capsule.
The technology is twenty-first century.
The instinct behind it is ancient:
put something meaningful into the ship before she goes to sea.
Why It Stuck
Because the coin does two jobs beautifully.
It looks backwards and forwards at the same time.
Backwards, towards sailors, gods, shipbuilders and maritime traditions stretching over centuries.
Forwards, towards the unknown voyages the new ship has yet to make.
And unlike many lucky charms, this one remains with the vessel.
Hidden beneath the mast, it goes wherever the ship goes.
Related Curiosities
Why Is Renaming a Ship Considered Bad Luck?
Why Are Horseshoes Supposed to Be Lucky?
Why Do We Cross Our Fingers for Luck?
Why Is Whistling on a Ship Supposed to Bring Bad Luck?
Sources & Further Reading
United States Navy — Mast-Stepping Ceremony: Commemorating Ancient Naval Traditions — describes the continuing naval ceremony and the Charon and votive-offering explanations.
United States Naval Institute, Naval History — discussion of ancient mast-step coins, archaeological finds, USS Constitution and competing interpretations of the custom.
United States Navy — Future USS Billings Mast Stepping Ceremony — modern Navy account of the tradition and its interpretation as good luck and safe passage.
United States Navy — USS John C. Stennis Mast Stepping — confirms that coins were also placed beneath the mast of USS Constitution and explains the modern continuation of the practice.
Last checked: 19 September 2026