The silver one shilling coin was made in Boston in 1652, and is one of about 40 known to still exist, a Rhode Island coin expert says
Top 20 Rare Coins Wanted By Collectors
Rare coin made in Colonial New England could fetch $300,000
Rare coin minted in Colonial New England sells for $350,000 - WBBJ TV
Rare silver coin made in Colonial New England could fetch $300,000 at auction - The Boston Globe
Rare coins price news - New England coin worth $350,000 found in candy tin - what could your old penny or dollar fetch?
1760-1820 Great Britain George III Silver Six-Pence
US coins and bills worth far more than their face value
RCMR - 2022 #2 March/April by Professional Coin Grading Service (PCGS) Market Report - Issuu
Rare coin made in Colonial New England could fetch $300,000
Rare coin minted in Colonial New England sells for $350,000
ANS Digital Library: Money of the American Colonies and Confederation
RCMR - 2022 #3 May/June by Professional Coin Grading Service (PCGS) Market Report - Issuu
US coins and bills worth far more than their face value
The Boston Mint and the First Colonial Coins
Newly-Discovered New England Shilling from 1652 Estimated to be Worth Over $300,000