Derek Duffy
@DocD8775
Follow on CollX
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2,238
Items
Rising Star Seller
Rising Star Buyer
Joined since Dec 2025
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Followers
291
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Following
257
What I'm Collecting
Michael Jordan
Kobe Bryant
Basketball
Multi-sport
Non-Sport
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Total cards sold:
43
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Average ship time:
1.0 days
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Last active:
about 1 hour ago
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Seller rating
(18)
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Buyer rating
(12)
10% off on orders of $25.00 or more
Only applies to listed items, and is not applied to negotiated Deals.
Minimum of $3.00 per order
Tracked USPS standard envelope. $0.75-$1.31