How do sports memorabilia buyers know they are getting the real deal?

CategoryUS News and Business Report - usnewsandbusinessreport.comPosted onAuthoramdadmin

Sports memorabilia prices are booming, but how do collectors know they are buying the real deal?
Source: US News and Business Report -usnewsandbusinessreport.com- BBC Breaking
How do sports memorabilia buyers know they are getting the real deal?