flow lines: when a coin is struck, the metal flows outward from the center, resulting in microscopic lines that add to the luster of a coin.
Flowing Hair: design type on most copper and silver U.S. coins struck from 1793-1795.
flow lines
The lines, sometimes visible, resulting from the metal flowing outward from the center of a planchet as it is struck. The “cartwheel' luster is the result of light reflecting from these radial lines.
Flowing Hair ...
flow lines: Microscopic striations in a coin's surface caused by the movement of metal under striking pressures.
follis: A Roman and Byzantine coin denomination; plural is folli.
Flow lines
Lines that are not always visible that are caused by the metal flow from the center of the coinage blank caused at the moment the blank was struck by the working coinage dies.
Flow Lines - Microscopic lines in the surface of a coin resulting from the outward flow of metal during striking.
Fractional Currency - Paper money with a face value of less than one dollar. (ie. 25 cents-50 cents) ...
flow lines
The lines resulting from the metal flowing outward from the center of a planchet as it is struck.
focal area ...
FLOW LINES
Reference to the metal flow lines that radiate out from the centres of the surfaces of a coin as a result of the extreme pressure of the dies on the planchet. Not seen on cast coins.
FLUORESCENT LIGHTING ...
Flow Lines
Microscopic striations visible in a coin's surface created by the movement of metal caused by high pressure die striking.
Flyspecks ...
Die Flow Lines - See "Flow Lines."
Die State - The condition of a die at a particular point in its life.
die crack A narrow fissure in the surface of a die; coins struck with such a die have a narrow raised line corresponding to the crack die erosion Wear on a die from use in the minting process die flow lines see flow lines die state ...
There are heavy die flow lines, less detail on the devices, and distorted lettering towards the rim.
(I'll add more text on this at a later date.)
This is an average 1987 dime.
Mint state coins often show a cartwheel effect produced by microscopic flow lines on the coin's surface, such as seen on this 1881-S PCGS MS66 Morgan dollar.
There is no evidence of flow lines in the metal that would suggest the metal flowed under a die during normal die pressures. Such lines should be present and clear on a genuine coin on this grade.
stress lines Alternate form of Â"flow lines.Â"
striations Term for the incuse polish lines on the die which result in raised lines on coins.
The light shining off of these flow lines often produces an effect known as the "cartwheel effect." The cartwheel effect is a term that describes the rotating, windmill like effect of light that mint state coins exhibit.
Alternate form of "flow lines."
striations
Term for the incuse polish lines on the die which result in raised lines on coins. These are usually fine, parallel lines though on some coins they are swirling, still others with criss-cross lines.
Flow lines are essential to the presence of mint luster and are responsible for the cartwheel effect on U.S. Silver Dollars.
Markers: Obverse - Many die scratches, flow lines and tiny die chips with perhaps the most notable in the area of the date.
Cartwheel - The pattern of light reflected by flow lines of mint state coins, resembling spokes of a wheel; Name given to the British pennies and two-pences of 1797 due to their unusually broad rims.
Luster - The glossy brilliance of a coin seen from the reflection of light off the flow lines.
Lustrous - A term used to describe a coin that still has its original mint bloom.
It is through the molecules of the metal flowing into the dies that flow lines are created. However, when metal flows over a sharp corner in the die, like the edges of a mintmark or words, it tends to roll the detail out.
The devices are somewhat mushy and there are no apparent flow lines in the fields, suggesting possibly a cast piece, however, it could also be a combination of wear and overcleaning.
In numismatics, the amount and strength of light reflected from a coin's surface or its original mint bloom. Luster is the result of light reflecting on the flow lines, whether visible or not.
lustre
Alternate form of luster.
is best known for appearing on Morgan Dollars, due to a fortuitous confluence of coin design, planchet size, and die preparation methods, although the effect can be seen on nearly any mint state coin. The cartwheel effect is caused by flow lines that ...
love token A coin which has been altered by smoothing one or both surfaces and engraving initials, scenes, messages, etc., thereon. See also token. luster Surface quality of a coin, result of light reflected from the microscopic flow lines.
 See also: Coin, Mint, Silver, Struck, Dollar
  
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