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
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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.
Minshull Trading 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.
GreatCollections is a proud marketing partner of Greysheet and our related pricing products. Additionally, they are members of CDN Exchange.
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.
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.
Stack's Marketplace is a proud data partner of Greysheet and Whitman Brands. Both companies use automated data pipelines interchangeably to support the tasks of buying, selling and auctions.
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.
Since 2018, APMEX has been a marketing and pricing data partner with CDN and CDN Exchange. The online retailer also licenses our wholesale pricing data for buying analytics across their internal buyers platform.
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.
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.
