Grandpas coins
Vallejo, California
- Address
- 151 Mountain View Avenue, Vallejo, CA, 94590
- Phone
- (707) 641-3086
Grandpas coins in Vallejo, California is a U.S. Coins, Bullion dealer listed on CDXList.com. Contact the shop for current inventory, buy/sell pricing, and hours.
Dealer location
Shop address — not a coin show venue.
Collector notes
Visiting a coin shop
A few notes before you walk into Grandpas coins in Vallejo, CA. 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.
Say thank you even if you do not deal
Looking is part of the hobby. Buying or selling is not required. If they spent time with you, say thanks and mean it. A short good visit is how regulars are made. A review later, if you had a fair experience, helps the shop more than a vague promise to “come back sometime.”
Follow the house rules without a debate
Bags on the floor, backpacks zipped, one person at the glass — shops set these for a reason. Argue about it and the visit is already off. If a rule is unclear, ask. If it is clear, do it.
Bring the holders, papers, and boxes they came in
Original packaging, certificates, and grading-company holders matter. Do not dump everything into a bag to “make it easier.” The dealer would rather see it the way it has been kept. Leave coins in PCGS, NGC, or ANACS holders.
A hold is a promise. Mean it.
If they hold a coin for you, ask how long and how you pay. Come back or call. Do not park the same piece at two shops. Dealers remember the customer who used a hold as a free option. They also remember the one who did what they said.
Lunch and after-work can stack the counter
Local shops get a rush when people are off the clock. If you have a box, those windows are the wrong time to expect a leisurely offer. Call and ask when they can sit with it. Most dealers would rather schedule you than rush you.