Treasure Island Coins
Sioux Falls, South Dakota
- Address
- Sioux Falls, SD, 57101
- Phone
- (529) 605-7749
- Website
- treasureislandcoins.com
Important information for Treasure Island Coins customers on rebasing to Battalion Metals
Dealer location
Street is not on file. The pin is the ZIP or city area — not a door.
Collector notes
Visiting a coin shop
A few notes before you walk into Treasure Island Coins in Sioux Falls, SD. These rotate daily. They are general collector etiquette from CDXList — not this shop’s house rules. When something is unclear, ask the person at the counter.
Do not walk in at closing with a suitcase
Five minutes to close is time to pick up a hold, not to dump an estate. Large lots take time to weigh, look up, and talk through. Call earlier in the day and ask when they can give you a proper look. A shop that is locking the door still has to balance the register and get home.
Tell them if a coin is damaged, cleaned, or already graded
Hiding a problem wastes time and trust. “This one was cleaned” or “this already came back from PCGS” is useful. Dealers would rather adjust than feel tricked. Honesty on the small things makes the rest of the visit easier.
Regulars get easier visits because they are known
Introduce yourself. Come back. Pay as you said you would. The second visit is almost always smoother than the first. A local shop is a relationship, not a vending machine. That works in your favor when you have something unusual.
If you are getting another offer, say so up front
On a large lot it is fair to hear more than one shop. Tell them. A good dealer would rather know than spend an hour and find out you were only using them for a number. Do not treat a courtesy look as free inventory research for the next counter the same afternoon.
Check hours before you drive
Listings show hours when the shop has shared them. They still change for lunch, shows, and appointments. If you are coming from across town, call or look at the hours on this page. A two-minute check beats a locked door.