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.
If you feel rushed, you can pause
You are allowed to say you need a minute. You are allowed to pack up and think. You are not required to decide while someone is waiting behind you — step aside and let them go. A good shop would rather you be sure than sorry.
“Best I can do” is a sentence, not an insult
They have to sell it, hold it, and stay in business. You can say no. You can ask if they can do better on part of the lot. You should not treat a firm number as a personal slight. A calm “I need to think about that” is enough.
Bullion and collector coins are different conversations
Melt moves with the market. A key date does not. Say what you think you have, then let them look. Mixing “it’s old so it must be rare” with a junk-silver bag slows everyone down. Sort in your mind: weight versus date.
Give the counter some room
Lean on the glass, hover over an open box, or park six relatives at the rail and nobody can work. Leave space for the dealer to move trays, use a loop, and talk privately. Extra people can wait in the shop or the car unless they are needed to decide.
No magnets, acids, or scratch tests on the pad
The shop has the tools if a test is needed. Do not perform experiments on the glass. You can damage the coin and the counter. If you think something is fake, say why and let them look.