Whitman Expo
Carlisle Development is a leading publisher of software for collectors since 1994. We specialize in numismatics (Coin and Paper Money Collecting).
Setting the Industry Standard
Join these CDN-Whitman
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Marketing and Data Partners
We rely on important relationships with these and other collectibles’ industry marketing and data partners.
CDN/Greysheet is the leading provider of pricing data to the industry. From reliable wholesale pricing information to structured catalog data of worldwide numismatic items (coins, tokens, paper money, etc) we are dedicated to the transparent sourcing of market data and making this information available to the trade.
Please support those that support the industry. Contact us if you have an interest in joining our esteemed list of supporters.
Cabrella is a third party insurer specializing in providing shipping insurance for numismatics and other high-value items. They are a proud sponsor of CDN Publishing, CDN Exchange, and the Greysheet family of products.
As a premier data partner Heritage provides auction lot information, sales history, and images. Additionally, they are important market makers on CDN Exchange with daily bids on many items including the important generic gold category.
GreatCollections is a proud marketing partner of Greysheet and our related pricing products. Additionally, they are members of CDN Exchange.
U.S. Coins & Jewelry is a proud marketing partner of Greysheet and our related pricing products. Additionally, they are members of CDN Exchange.
At In God We Trust Coins and Currency, we strive, in every way, to make our customers happy with our wide selection of rare US coins and currency. We are a family owned business.
Stack's Bowers Galleries is a marketing and data partner with CDN and CDN Exchange. They provide us with auction listings, price history and images.
Minshull Trading is a proud marketing partner of Greysheet and our related pricing products. Additionally, they are members of CDN Exchange.
DLRC uses our Greysheet Catalog for inventory management and CPG pricing on their web site for display with auction lots and buy-it-now items. Additionally, DLRC uses Greysheet pricing data in a third-party program called IQ.
Since 2015 CAC has been an important data and marketing partner. Historically the largest wholesale market maker on CDN Exchange, CAC uses the Greysheet Catalog as part of its grading system and displays CPG retail pricing for CACG and CAC-stickered coin values on their website.
