Adjustment Marks
From Susan Headley, former About.com Guide
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Adjustment Marks
In the early days of the US Mint, planchets were often made overweight, by design. These planchets would then be adjusted with a file, by hand, to bring them down to the proper weight specifications for the coin.
adjustment marks
Marks or grooves caused by filing a planchet prior to striking in order to reduce it to a standard weight.
Adjustment marks
Scratches which appear mostly on pre-1807 silver and gold coinage. These scratches are actually file marks, made at the mint in order to reduce the weight of a coin so that its metal value wouldn't exceed its face value.
Adjustment Marks - On early US gold, the planchets were at times slightly overweight. The raw plnachets were filed down to the proper weight. Those file marks came through the minting process and are known as Adjustment Marks.
ADJUSTMENT MARKS
A series of parallel grooves caused by the removal of small scrapings of metal to adjust overweight planchets before they were struck. Not the same as scratches.
Adjustment Marks - Small striations or file marks found on early United States coins. Caused during planchet preparation (before striking) by drawing a file across the coins to remove excess metal so as to reduce the planchet to its proper weight.
Adjustment Marks - Marks caused by filing a planchet before striking to reduce its weight to the standard, as was sometimes done for early U.S. coinage
Aes - Bronze.
Album - A book-like holder with slots for storing coins.
Adjustment Marks
These are some file marks that show up on some early coins. The blanks for these coins were filed down before the coin was struck to get them to the proper weight and these file marks were still visible after the minting process.
adjustment marks Pre-striking file marks seen mainly on gold and silver coins prior to 1840. These removed excess metal from overweight planchets.
Adjustment Marks - When a flan or planchet was too heavy for a particular denomination, an adjuster would scrape it by hand to bring it down to the correct weight.
AE - Symbol for `aes', an abbreviation for copper or bronze.
Adjustment Marks - File marks made by the U.S. Mint on silver or gold coin blanks to correct the metal content and make them the perfect weight.
Aes grave - Cast bronze coins of the Roman republic; literal translation is "heavy bronze".
Adjustment Marks
File marks made by the mint on a silver or gold planchet to correct its weight. Such marks often survive the coining process. This is common on 18th century coins.
Adhesive
A gummed stamp made to be attached to mail.
adjustment mark: scratches made when a file is used to lower the weight of a planchet before striking.
adjustment marks
File marks on coins where excess metal was removed from overweight planchets.
AGW (Actual Gold Weight) ...
Adjustment marks are common on silver and gold coins of the late 17th and early 18th centuries and are a result of the legal requirement that such pieces be of a precise weight and value.
Adjustment Marks
File marks made by the mint on a silver or gold planchet to correct its weight.
Alloy
A mixture of two or more metals, e.g. the Sacagawea Dollar is comprised of an alloy of .770 copper, .120 zinc, .070 manganese, and .040 nickel.
Adjustment Marks
Small narrow grooves or file marks found on some early United States coins. Created before striking by filing across the planchet to remove metal for the purpose of reducing the planchet to its proper weight.
Aesthetic Appeal ...
adjustment marks Filing down the face or rims of an overweight planchet. Filing marks often survive the coining process. This is common on 18th century coins. aes grave Cast bronze issue of the Roman republic; literally heavy bronze.
With mint adjustment marks on reverse, very sm. edge bump. Breen cites this type as Breen 5374, (p.427), Bolender 3, (BB-71), Hilt 9G, and Robinson 823.
Draped Bust half dimes typically show adjustment marks made with a file to bring slightly overweight coins to the proper standard. This process of adjustment was done before the coin blanks, or planchets, were struck by dies into coins.
Faint vertical adjustment marks cross the center and a planchet lamination extends diagonally across the surface, most prominent at Liberty's eye. The reverse is bright green-gold and fully reflective with a small lint mark below AM of AMERICA.
I believe these are remnants of heavy flan adjustment marks that are part of the manufacturing process. Most collectors avoid damaged coins. Some are more forgiving of damage from antiquity than of coins injured in burial and recovery.
Frequently seen on these early fives are adjustment marks, parallel lines made by files used in adjusting overweight planchets.
Many of these early half dimes show adjustment marks on their surfaces. These are file marks made on the planchet before a coin is struck in order to reduce the weight to the Mint's standard.
There are subtle, and interesting, adjustment marks across the cloud on the reverse at 1 o'clock, which adds to both the coin's eye appeal and its history.
Some early silver and gold coins have adjustment marks. These do not effect the grade, but can affect the value in a similar fashion.
Examples ...
Obv: AVT K M O [CE MAKPINOC CE]
Laureate head right.
Rev: Large S.C, Î" above / E beneath; all within laurel-wreath interrupted by star above.
Some adjustment marks from original minting?
(Sear GIC 2949 / BMC 386) ...
Seaby #3460
Guinea, 1700. S.3460; Fr-309; KM-498.1. William III. Second laureate Bust. Human-shaped harp on shield. Natural edge flaw at 3 o'clock. Faint adjustment marks on obverse.
characters, brown patina, some adjustment marks to the planchet as made, clear characters, Very Fine....SOLD Photo
CC639B. Large variety rev. characters, brown and green patina with some spots of slight roughness, clear characters, Very Fine....
Yes, I had paid full XF money for what was technically a VF35 coin but what a VF! Evenly struck, original surfaces, no adjustment marks. Twenty minutes later another dealer offered us a twenty-percent profit.
Look for something well centered and without cracks or adjustment marks. You should be looking for a high grade coin with a natural patina (that is not cleaned or dipped).
 See also: Adjust, Marks, Adjustment marks, Coin, Mint
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