Collector resources
The current standard books for each series
These are the most authoritative current references for the series Auctori supports. Variety numbers on our supported series page still use each series' standard numbering, like Maris, Ryder and RR.
New Jersey coppers
New Jersey State Coppers: History, Description, Collecting
Roger Siboni, John Howes and A. Buell Ish, ANS and C4, 2013
New Jersey State Coppers Companion
Roger Siboni, John Howes and A. Buell Ish, C4, 2024
Vermont coppers
The Copper Coins of Vermont and Those Bearing the Vermont Name
Tony Carlotto, C4, 1998
The reference for RR numbers.
The Copper Coins of Vermont and Interrelated Issues 1783-1788
Q. David Bowers, Stack's Bowers, 2018
Massachusetts cents and half cents
The Cents and Half Cents of Massachusetts
Michael Packard, 2025
Machin's Mills
The History and Coinage of Machin's Mills
John Howes, Jeff Rosen and Gary Trudgen, 2nd ed., C4, 2024
Fugio cents
United States Fugio Copper Coinage of 1787
Eric P. Newman, 2008
Fugio Copper Notes
Rob Retz
The Fugio Files
Michael McLaughlin, series in Penny-Wise (EAC)
Die states.
Kessler (K-) numbers
A cross-reference to Newman numbers, often cited in auction lots.
Notre Dame Fugio reference images
Photos at coins.nd.edu.
Nova Constellatio
Whitman Encyclopedia of Colonial and Early American Coins
Q. David Bowers, 2nd ed., Whitman, 2020
General reference.
Civil War tokens
The club for Civil War tokens, and publisher of the Fuld references.
Where to buy
These books are sold, not free to read online. Some are limited printings, so check with the seller.
C4 (Colonial Coin Collectors Club)
Publisher of the New Jersey Companion, Machin's Mills and Carlotto's Vermont book. Resources at colonialcoins.org/category/resources.
Kolbe & Fanning Numismatic Booksellers
Carries the C4, Packard and ANS titles.
Bowers' Vermont book.
Bowers' Encyclopedia, 2nd ed.
American Numismatic Society (ANS)
Co-publisher of the 2013 New Jersey book.
See every series and variety we support
Reference works and publishers are cited for identification only. Auctori LLC is not affiliated with or endorsed by their authors or publishers.