Coin Specifications

Category: Early American – Post-Declaration (1776-1820)
Mint: Private
Catalog: KM-Tn47.2
Obverse Designer: Thomas Sparrow (?)
Reverse Designer: Thomas Sparrow (?)
Composition: Silver
Diameter: 22mm
Numismatic specification data provided by Krause Publications NumisMaster.
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1783 SH WORM CHALMERS MARYLAND 1S MS obverse 1783 SH 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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Price Guide

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Census

 
NGC GRADE SUMMARY

Total Graded: 18
Low Grade: VG
Average Grade: VF
High Grade: 63


Upcoming Auctions

A random selection of NGC coins is shown below.

Images
Date
Grade
Auction House
Sale / Lot
1/12/2015 XF 45   Heritage Auctions 2015 January 7 - 12 FUN US Coins Signature Auction - Orlando Session(4), 1216/Lot# 5657
1/12/2015 VG Details  Heritage Auctions 2015 January 7 - 12 FUN US Coins Signature Auction - Orlando Session(1), 1216/Lot# 3046
1/12/2015 G Details  Heritage Auctions 2015 January 7 - 12 FUN US Coins Signature Auction - Orlando Session(1), 1216/Lot# 3045


Auction Prices Realized

A random selection of coins is shown below.

Images
Date
Service
Grade
Auction House
Sale / Lot
Price
4/25/2002 PCGS AU 55   Heritage Auctions 2002 April Columbus, OH (CSNS) Signature Sale #288, 288/Lot# 7815 $7,762.50
5/3/2010 PCGS VG 10   Teletrade Auction 2847, 2847/Lot# 1001 $2,357.50
12/2/2010 PCGS Genuine Genuine   Heritage Auctions 2010 December Houston Signature US Coin Auction Session(1), 1147/Lot# 3141 $8,625.00
10/17/2012 PCGS XF 40   Stack's Bowers The November 2012 Baltimore Auction - US and World Lots - Live and Internet Only Sessions, 144/Lot# 6413 $21,150.00
1/9/2013 PCGS Genuine XF   Heritage Auctions 2013 January 9-13 US Coin FUN Signature Auction - Orlando Session(2), 1181/Lot# 3789 $6,462.50
2/22/2013 PCGS XF 45   Stack's Bowers The March 2013 Baltimore Auction, 181/Lot# 427 $11,162.50


NGC Registry

NGC Registry Score 1783 SH WORM CHALMERS MARYLAND 1S MS
 PrAgGVGFVF4045505355586061626364656667686970
Base949113817072464328142904565481756756144674670999770105651140712297132381423115278163811754218763
1012132719592736361743814649510358316344686379891003510845117031261013569145801564516768179490
000000464951035831634468637989100351084511703126101356914580156451676800
000000473353895987654569818879103001112612000129241390014929160131715500
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