Trial Piece
A test coin striking to examine the effectiveness of new or re-worked dies. Sometimes, test pieces are struck in a metal not used for normal coins struck for circulation.
Type ...
TRIAL PIECE
A piece, usually uniface and in a soft metal, struck for the purpose of having a sample of the design. Such pieces can be struck from a matrix or a die. See Experimental Pieces.
TRICHLOROTRIFLUOROETHANE ...
Trial pieces of various thicknesses were minted with a portrait of Edward VIII and a reverse design of a thrift plant by Frances Madge Kitchener. Some of these were not returned and found their way into circulation.
Trial piece - see Die Trials
Weak strike - (see soft strike)
WM - white metal - an alloy made primarily of tin.
Pattern - A trial piece run off to test a proposed design or metal sometimes without a date.
Pieces of Eight - A former Spanish coin with a face value of eight reales; the U.S. dollar was originally valued at and tied to eight reales.
Do not use as a generic term describing experimental pieces and trial pieces. pieces of eight Popular term for silver Spanish 8-real pieces; often associated with pirate treasure.
pattern - a coin that was struck as an experiment or as a trial piece. Usually, a new design or made of experimental metal alloys. U.S. Pattern coins from recent years are illegal to own because they are still considered government property.
Those struck from these dies in other metals are pattern trial pieces.
Experimental pieces include those struck with any convenient die to try out a new metal or a new denomination.
The die for this coin was prepared by the Royal Mint and one uniface trial piece was struck. The trial piece and the die are still in the possession of the Royal Mint.
Again in William and Mary's reign, trial pieces for a proposed coinage in "mixed metals" were struck (dated 1692) from copper with a tin centre and copper with a thin ring of brass let into either the obverse or reverse.
There are a few examples in each thickness that have an ornamented edge rather than the usual plain edge and there is also a unique pewter trial piece now in the collection of John Ford.
Somewhat parroting the Adams-Woodin title, it bore United States Pattern, Experimental and Trial Pieces, and went through seven editions, the last several of which were distributed by our firm.
This is a gilt aluminum trial piece for a Stella, or 4-dollar "goloid" coin (a combination of 6g gold, 3g silver, and 1g copper). The coin was intended to help international trade.
United States Pattern, Experimental and Trial Pieces, by Dr. J. Hewitt Judd, is the standard reference for the series. Andrew W.
This led Mint Director Nellie Taylor Ross to draft new regulations in 1947 stating "no official coinage dies, domestic or foreign" were to be used for striking trial pieces except under rigid security, ...
They may have produced coinage that early, however, since $2½ and $5 trial pieces exist in copper bearing an 1849 date.
One has to wonder, then, if the Pannonian Hat coin was meant to be a trial piece or pattern for a gold issue for presentation that was never struck, since we can find a large bronze from another mint, also lacking a corresponding gold issue.
Many pattern enthusiasts have always wanted a hub trial or a die trial piece to go along with the specific type or denomination of pattern(s) that they collect. A new demand has emerged for hub trials, die trials and splashers.
The only Martha Washington Dime Trial Piece in private hands is being offered for $100,000 by another coin dealer. NGC authenticated and encapsulated this Martha Washington Dime in April of 2000.
was a numismatic author who compiled the first edition of United States Pattern, Experimental and Trial Pieces in 1959.
There were trial pieces of this type struck in various metals in 1824 and 1825. The reverse of this type is a crowned shield with arms. Approximately 450 of these were struck making this coin, too, quite rare.
Judd, J. Hewitt M.D., United States Pattern, Experimental and Trial Pieces, 7th Edition, A. Kosoff, Western Publishing Co., Racine, WI, 1982.
White, Weimar W. The Liberty Seated Dollar 1840-1873, Sanford J. Durst, Long Island City, 1985.
Pattern: An experimental or trial piece, generally of a new design or metal.
Planchet: The blank piece of metal on which a coin design is stamped.
The series is too extensive to detail here, but the reader is highly recommended to look them up in "United States Pattern, Experimental and Trial Pieces" by Dr. J.
These coins are patterns or trial pieces struck for test purposes.
Type:
1631-1639 (Charles I) Pattern Halfgroat ...
This was a very rare coin, almost a trial piece, but it did circulate so successfully that demand could not be met. Finally, with the silver deposits being mined at Schwaz to work with and his mint at Hall, Sigismund issued in 1486
Years: ...
The $1 Panama Pacific trial piece was struck in silver at the Philadelphia mint at some unnamed date in the spring of 1915, before the working dies went to San Francisco.
PERPETVITAS IMPERII emperor standing right receiving shield inscribed with swastica from hand above. RIC Sirmium 5, "R5" for Valentinian only, plate IX.19. "regarded by Dr. Elmer as a trial piece. See NC, 1938, pp. 126ff." p. 159.
Uniface - A coin with a design on just one side. Normally as a pattern or trial piece.
Unique - Only one example known ...
Essay
Also called an essai, the term represents experimental pieces, pattern coins, transitional and trial pieces.
The senior and foremost was popularized by Dr. J. Hewitt Judd (may he rest in peace) in his book United States Pattern, Experimental and Trial Pieces, more commonly referred to by its popular name, the Judd book.
proposed for adoption as a regular issue, struck in the metal to be issued for circulation and that were not adopted, at least in year of pattern issue. Should not be used as a generic term describing experimental pieces and trial pieces.
is in the manufacture of proofs"those special pieces called the "Caviar of Coinage" by renowned numismatic scholar and author, the late Walter Breen. The term was first used in relation to coins by the British to indicate a preliminary trial piece, ...
or denominations proposed for adoption as a regular issue, struck in the metal to be issued for circulation and which were not adopted, at least in year of pattern issue. Do not use as a generic term describing experimental pieces and trial pieces.
ruble of 1825 of Czar Constantine (Figure 29), three, six, and twelve ruble platinum coins of the 1830s (Figure 27), some of which are known only in very few specimens; the massive copper pattern ruble struck in 1771 (Figure 28) as a trial piece ...
Hewitt Judd (may he rest in peace) in his book United States Pattern, Experimental and Trial Pieces, more commonly referred to by its popular name, the Judd book.
 See also: Coin, Mint, Struck, Pattern, Silver
  
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