As a new collector recently introduced to the hobby, I hear the use
of the descriptor “monster box” when referring to American Eagle
bullion coins. What is a “monster box”?
A “monster box” is the sturdy green box in which the U.S. Mint
packages 500 of the American Eagle 1-ounce .999 fine silver bullion
coins struck at either the West Point Mint or San Francisco Mint for
delivery to the authorized purchasers.
Each three-piece monster box measures 8.5 inches high, 14.75
inches long and 4.5 inches high.
The box consists of a top and bottom, along with an interior shelf
that restricts the movement of the tubes of coins.
The 40.6-millimeter American Eagle silver bullion coins, each 2.98
millimeters thick, are first placed into tubes containing 20 coins
each in an automated operation that also caps the tubes with a green
cap denoting the United States Mint and Treasury.
The automated system puts the coins in the tubes and caps the
tubes. Then 25 tubes filled with the American Eagle silver bullion
coins are robotically placed in the bottom of a monster box that a
robotic arm previously put into position on the assembly line.
Twelve rolls fit on either side of the box and one roll in the center.
Two gaps appear in the center of the box, one on each side of the
The box lid locks into place over the tubes and the shelf that
holds the tubes in place.
The exterior lid is robotically fitted to the box.
The closed box is then wrapped with a strap denoting the source of
the coins as either the West Point Mint or San Francisco Mint.
The U.S. Treasury seal is imprinted on the outside of the box.
The monster boxes of 500 coins each are picked up from the
production facilities by transportation arranged and paid for by the
Empty monster boxes for storage purposes can often be found online
from individual dealers or offered on eBay.
The public cannot buy the American Eagle silver bullion coins
directly from the Mint. The coins are sold by the U.S. Mint directly
to its network of high-volume, approved buyers who purchase minimum
quantities of the coins per order at the closing London PM spot price
per ounce plus a $2 premium per coin.
The coins are then made available to other dealers and the
collecting and investing public.
Coin World’s Readers Ask department does not accept coins
or other items for examination without prior permission from Coin
World. Readers Ask also does not examine error or variety coins.
Materials sent to Readers Ask without prior permission will be
returned unexamined. Please address all Readers Ask inquiries to firstname.lastname@example.org or
call 800-673-8311, Ext. 172.