We pride ourselves on carrying nothing but 100% certified authentic memorabilia. We have 3rd party authentication services at our store for open authentication approximately every 2-3 months.  We will post on here as soon as we have a date for them to appear in our store.



Beckett Authentication Date: TBA. Last authentication event was on October 18th, 2022.




We are accepting submissions and can hold your items at our store for the next Beckett event. As always, items can be dropped off at our retail store or shipped to us. Beckett will only be authenticating autographs and will not encapsulate items or do card grading.


If you have any items you would like to have authenticated, we appreciate it if you can have your item at our store at least a day in advance on when Beckett Authentication will be on site.  You may drop your item off or ship your item to us any time leading up to the day that they will be here.


Mail-In Items:

You may send your items to our store for Beckett to look at. If you mail your items to us, you will have to pay for shipping to our store and shipping back to you. In your package, please include: your name, your phone number, and a return label in the package. If the return label is missing, we will contact you for return postage.


Please send your mail-in items to:


Mill Creek Sports ATT: BAS Mail Orders

13616 Bothell Everett HWY

Mill Creek, WA 98012


You will be able to pick your items a couple days after they are here.


As always, we have the best interest of our customers in mind and want to make sure your collectibles are authenticated properly to ensure long term value.


This service is only for authenticating autographs. Beckett does not do card grading and does not encapsulate items through this service.


Beckett Authentication Services Pricing:

     Beckett Small Cert Rates (Beckett Posted Price Is Under $50):

         •Under 20 items = $15.00 each
         •20-50 items = $12.00 each
         •Over 50 items = $10.00 each


     Beckett Full Page Letters (Beckett Posted Price is $50 Or Over):

          •25% Off For Items Listed From $50-$250

          •No Discount For Items Listed Over $250