Skip to content

Featured Video

Featured Categories


The NNP library, at the heart of our project is a growing database of all numismatic literature and documents we can digitize.


Rub shoulders with our huge database of numismatic figures from authors to Mint directors to coin designers.


A great place to start if you don't know exactly what you're looking for.


A wide selection of historic numismatic periodicals, featuring many popular titles.

Auction Companies

Keep up with latest auctions.

Image Collections

A growing database of numismatic images contributed by collectors and institutional partners.


Jul 09 2020

NNP Symposium Adds Third Day

In response to strong demand, the NNP Symposium has added a third day with additional presentations. Now scheduled for August 28 – 30, the NNP Symposium is a Zoom-based online numismatic gathering featuring presentations on a wide variety of numismatic subjects. Scheduled speakers include John Brush, speaking on the D. L. Hansen collection, Greg Rohan, who will discuss the current state of the numismatic market, and a host of others. Participants may also present virtual exhibits on any topic through submitted images and text. 

In the last few weeks we’ve seen strong uptake in the use of Zoom and other conferencing platforms for numismatic meetings. Coin clubs are generally seeing larger audiences than with in-person meetings, as the logistics of attending are greatly simplified. Hosts and attendees are learning Zoom, and, anecdotally, meetings are running more smoothly as users become comfortable with the technology. While many industries have been negatively impacted by the epidemic, numismatics seems to be holding its own – the demand for interesting items hasn’t changed, even while the ways we interact with each other are evolving quickly. The NNP Symposium is part of this evolution, freely providing facilitated meeting services. 

NNP Symposium attendees should register at the link below, in order to receive the specific meeting notices. There are a small number of presentation timeslots still open, and those wishing to present or host a club meeting may apply on the same page.

Link to NNP Symposium registration:
Link to NNP Symposium speaker list:
Read more
Aug 07 2020

An 1890 Pencil Rubbing Sent to the Mint

Continued transcription of the National Archives content reveals additional tidbits, in this case an 1890 letter from A. B. Turner to the U.S. Mint. Turner asks about an 1799 U.S. ten-dollar gold piece, and encloses a pencil rubbing. The piece is described as “silver,” with the weight of a ten-dollar gold coin. If truly silver in appearance, the piece might been a counterfeit with the outer coating worn off. The Mint appears to have responded that the piece had no premium value beyond the gold content, valued at $10.60 (the Coinage Act of 1834 effectively decreased the weight of the ten-dollar piece from 17.5 to 16.718 grams). This was spot on – a 1799 eagle sold for $10.60 in the R. Coulton Davis sale (January 1890), conducted by New York Stamp and Coin. 

Link to National Archives & Records Administration material on Newman Portal:
Link to transcribed letter from A. B. Turner:
Link to R. Coulton Davis sale on Newman Portal:
Read more
Aug 06 2020

Newman Portal Adds Baldwin’s of St. James’s Sale Catalogs

Newman Portal has recently added auction sale catalogs from Baldwin’s of St. James’s (2017-date), in addition to those of their predecessor, St. James’s (2004-2016). Baldwin’s of St. James’s handles numismatic material from all periods, including ancient, medieval, and modern numismatics. American material occasionally shows up in European sales, and a sampling of these catalogs reveals a number of related lots. NNP acknowledges Eric Hodge and also Neil Paisley, Managing Director of A. H. Baldwin & Sons, Ltd., for their assistance with this content.

Link to Baldwin’s of St. James’s catalogs on Newman Portal:
Link to Baldwin’s of St. James’s home page:
Read more

NNP Statistics Watch us grow!

Auction Lots
Encyclopedia Records
NNP is 100% non-profit and independent // Your feedback is essential and welcome. // Your feedback is essential and welcome.