| Business | Phone |
| Coin Lode Po Box 1187, Chico 95927 | (530) 345-7969 |
| Dr Eugene Bruder Numismatist Po Box 246, Chico 95927 | (530) 894-0922 |
| Olde World Numismatics Po Box 2274, Chico 95927 | (530) 345-1317 |
| Penny Ranch 2503 State Highway 32, Chico 95973 | (530) 345-1173 |