Home : Help : Rules & Safety (SafeHarbour) : Authentication Services

You've come to the right place if you need a professional opinion on your item's authenticity or condition. To help you find the right type of expertise, AllAuto has links to companies that provide this specialized service.

• Opinions. Get a quick, preliminary opinion online regarding an item's authenticity before you buy or sell it. This service is currently available only for sports autographs and memorabilia.

• Authentication. Find out whether an item is genuine based on an independent authenticator's physical inspection.

• Grading. Determine the physical condition of an item.

For more information about Authentication & Grading, take a look at some Frequently Asked Questions.

Simply click on the company you're interested in for more information about their services, pricing, and credentials.

	Coins		Trading Cards
	Get your coins graded with NGC Use PCGS to grade your coins.		Grade your trading cards with PSA. SGC can authenticate your trading cards.
	Comics		Sports Autographs & Memorabilia
	Use CGC to have your comics graded.		Authenticate your autograph with PSA/DNA.
	Stamps		Authenticate sports autographs and memorabilia with OnlineAuthentics.com. General
	PSE will authenticate and grade your stamps.

NOTE: The opinions expressed by these evaluators are theirs alone. AllAuto does not examine items listed on its site and does not have the expertise to evaluate items. AllAuto cannot guarantee the findings of these evaluators -- authentication and grading are difficult, often subjective matters where the experts themselves occasionally disagree. Each of the companies listed on this page that provides authentication and/or grading services is an independent company, and AllAuto is not responsible in any way for any action, inaction, opinion or service in connection with these companies. You should review the credentials of each company and use your own judgment before using a company's services