Sports Markets USA
Baseball Mystery Box - Authentic Signed Memorabilia
Baseball Mystery Box - Authentic Signed Memorabilia
★★★★★ Rated 4.9/5 by 1000+ Happy customers
Couldn't load pickup availability
- Authenticity Certificate
- Safe & Secure Checkout
- Tracking Number
Discover the thrill of authentic baseball memorabilia with our exclusive Baseball Mystery Box!
Each box contains ONE premium, authenticated baseball collectible valued at over $200 - randomly selected to surprise and delight true fans and collectors.
What Could You Receive?
You will receive ONE of the following authenticated items:
- ⚾ Signed Baseball - Official MLB baseball with authentic autograph
- 🃏 Signed Trading Card - Premium baseball card with authentic signature
- 📸 Signed Photo - Professional 8x10 or larger photo with autograph
- 🪖 Mini Helmet - Collectible mini helmet with authentic signature
Each item is randomly selected - you'll receive ONE authenticated collectible per box.
Why Choose Our Baseball Mystery Box?
100% Authentic: Every signed item comes with a Certificate of Authenticity from reputable authentication services.
Exceptional Value: Retail value exceeds $200 - you're guaranteed to receive more than you pay!
Perfect Gift: Ideal for birthdays, holidays, Father's Day, or any baseball fan in your life.
Collector's Dream: Build your collection with genuine MLB memorabilia from Hall of Famers, All-Stars, and rising talents.
The Unboxing Experience
Imagine the excitement of opening your mystery box to discover which baseball legend's signature you've received. Will it be a vintage Hall of Famer or a current MVP? Each box is a unique surprise designed to delight collectors and fans alike.
Note: Items are randomly selected. Specific players and items are not guaranteed. Each box contains ONE item. All sales final.
Certificates of Authenticity (COA)
Certificates of Authenticity (COA)
Every autographed item we offer is certified authentic and includes a COA from one of the industry's most trusted third-party authenticators, including but not limited to:
Beckett, JSA, PSA/DNA, Radke, Denver Autographs, Millcreek, and Fanatics.
*Please note: Some authenticators now use a tamper-proof hologram on the item instead of a printed certificate. You can scan the QR code or look up the serial number on the respective company’s website for verification. For helmets, look for the hologram at the back on the bottom right.
Shipping
Shipping
Our typical shipping timeframe is 3–4 weeks. Once your item ships, you’ll receive an email with tracking details.
*Please note: Occasionally, the Shop app may send a delivery notification before the item has actually been delivered. If you have not received a tracking email from us, your item has not yet shipped.
Share
