JSA at the Tri-State Siouxtacular Card Show

Schedule

Fri, 26 Jun, 2026 at 04:00 pm to Sun, 28 Jun, 2026 at 03:00 pm

UTC-05:00
Location

Sioux City Convention Center | Sioux City, IA

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🖊️ JSA Autograph Authentication & Express Drop-Off CGC Card Submissions – Live at the Event!
We’ll be accepting submissions for JSA autograph authentication and CGC Card grading services.
💥 JSA Event Special:
$15 per autograph for items signed at the show
Stop by the booth after getting your item signed to receive authentication
Previously signed items will also be accepted starting at $25
Save time by completing your submission form in advance:
👉 https://www.spenceloa.com/submit-your-item
CGC Express Drop-Off:
CGC Card grading submissions will be accepted on-site.
To participate, complete your CGC submission form in advance at cgccards.com.
Bring your cards along with your order number (beginning with “CAR”) and submit them to a JSA representative at the event. JSA accepts a maximum of 50 cards per CGC order. Spots are limited and subject to availability.
⚠️ Please Note: Cash will not be accepted for payment of services.
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Where is it happening?

Sioux City Convention Center, 800 4th St, Sioux City, IA 51101, United States

Event Location & Nearby Stays:

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James Spence Authentication - JSA
Host or PublisherJames Spence Authentication - JSA

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