Who We Are

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Dan Matthews and Joey Whiteside formed The Authentication Company LLC (TAC) in 2000 to help fellow collectors mark and identify advertising antiques to ensure their originality & authenticity. We were tired of seeing people not getting the full value of their antiques. We also didn't like seeing all the fakes in the marketplace. We want to help make sure that people understand the value of their collections. 

We have spent decades authenticating thousands of antiques, from single items to large collections, traveling all over the United States to ensure that your collections are the real thing. With his education and experience, Dan even created a rating system to make sure the ratings were consistent. It is now the industry standard for Petroliana and Advertising collectibles. 

 

About Us

Joey Whiteside

Partner and operator of The Authentication Company LLC (TAC)

Specialities: your personal collections or area of specialization within the business 

Joey has been a lifelong collector. As a kid, he collected and sold sports cards at local flea markets and card shops. Fond memories of his childhood and the simpler times then brought about his interest in the advertising hobby. Joey’s first sign was simply a street sign found with his wife in SC with the name of their pet bulldog Sampson. As the years progressed he began collecting more signs as well as selling signs on eBay, online via Petrojoe.com, at shows, and directly to clients.

 

 

Dan Matthews

Partner and operator of The Authentication Company, LLC (TAC)

Special Interests/Personal Collection:

Dan is a licensed auctioneer in the following states: Illinois, Indiana, Ohio, Wisconsin, Pennsylvania, New Hampshire, Kentucky (license in escrow). His business associations include: The National Auctioneer Association, Illinois Auctioneer Association, and New Hampshire Auctioneer Association. Dan is working towards an ISA (International Society of Appraisal) degree

He is a qualified property appraiser and certified auctioneer. His education and 30+ year experience as a chief auctioneer for two auction houses has made him an expert in various antique categories. 

Dan has authored two volumes on collecting and displaying petroliana.