Coin Specifications

Category: Early American - Post-Declaration (1776-1820)
Mint: Private
Obverse Designer: Thomas Sparrow (?)
Reverse Designer: Thomas Sparrow (?)
Composition: Silver
Diameter: 22mm
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1783 LG WORM CHALMERS MARYLAND 1S MS obverse 1783 LG WORM CHALMERS MARYLAND 1S MS reverse
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Description & Analysis

The reverse of nearly all Chalmers shillings depicts two birds fighting over a worm, a design that has become iconic for Colonial Maryland numismatics. Researchers have long speculated on the meaning of this motif and some theories hold that it represents the American Revolution or, perhaps, infighting between the newly independent states.

Both long worm and short worm varieties are known with the long worm variant being slightly more common. An extremely rare Chalmers shilling type features 12 interlocking rings as the reverse design.

John Chalmers, an Annapolis, Maryland, silversmith struck silver threepence, sixpence and shillings in 1783, the year that the Treaty of Paris officially ended the American Revolution. These coins clearly circulated in Colonial Maryland and examples are seen in a wide range of grades.

The initials “TS” on reverse dies used to strike Chalmers sixpence are for Thomas Sparrow, the engraver of that die and possibly all of the Chalmers coinage. Sparrow was also an engraver of Maryland paper money.

GRADE SUMMARY

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Census

 
NGC GRADE SUMMARY

Total Graded: 18
Low Grade: VG
Average Grade: 40
High Grade: 62

The chart showing VG series, F series, VF series, 40 series, 45 series, 50 series, 53 series, 55 series, 58 series, 60 series, 61 series, 62 series.
NGC CENSUS DETAIL Last Updated: 1/14/2020 1783 LG WORM CHALMERS 1S MARYLAND MS
 PrAgGVGFVF4045505355586061626364656667686970Total
Base--353-21--3--1--------18
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Total--353-21--3--1--------18
 --17 %28 %17 %-11 %6 %--17 %--6 %-------- 

NGC Registry

NGC Registry Score 1783 LG WORM CHALMERS 1S MARYLAND MS
 PrAgGVGFVF4045505355586061626364656667686970
Base1450170719282754456559226616743176067754790580588485892993909868103641087811411119631288516086
1536178122033358501761536888748976557804795682008633908395491003310535110561159512270139520
000000688874897655780479568200863390839549100331053511056115951227000
000000715975487705785580078343878192369709101991070711233117791257800
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