**Mail-In Or Drop Off** Your Item To Be Signed By Hall of Famer Ken Griffey Jr.

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Ken Griffey Jr. Mail In
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Mail-In Items: Customers may send their items to us or drop them off at our store to get signed by Ken Griffey Jr. We have created a Mail-In listing for this. In this listing, please choose which item you're sending in. You will be charged differently depending on what items you're sending in. We have also included premium options for mail-in items. This includes game used items, milestone tickets, etc. You will have to pay the premium option charge if you are sending in these types of items to get signed. 

Inscriptions: You may choose one inscription from the pre-approved list for $100. 

Beckett Authentication: Add Beckett Authentication to your item for $8. We will have Beckett authenticate your item by adding a tamper-proof sticker to it. We are not providing an encapsulation service for cards. This option is only available for items signed ONLY by Ken Griffey Jr. Beckett will not be authenticating items that have multiple signatures. If you'd like a Mill Creek Sports hologram and matching certificate of authenticity for no additional charge, please let us know in the notes section at checkout.

Notes: If you would like to add any notes to the order (pen color, autograph location, etc.), please include them in the notes section during checkout.

All Mail-In orders must be sent to our store. Please include your order # inside of the package to help us keep track of your order. Please send your mail-in items to:

Mill Creek Sports ATT: Mail Orders

13616 Bothell Everett HWY

Mill Creek, WA 98012


  • We have the right to add a Premium pricing fee to any mail-in at its discretion. We will contact you to discuss the actual fee.
  • No Jersey Numbers
  • No Unlicensed Jerseys
  • No Yankee Killer Sports Illustrated Cover
  • Ken Griffey Jr. will not sign his full name (George Kenneth Griffey Jr.), middle name, or any deviation of it.
  • Ken Griffey Jr. has the right to refuse any item. We will offer refunds for items that he does not sign.

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