| Business | Phone |
| Antiqua Inc 20969 Ventura Blvd # 11, Woodland Hills 91364 | (818) 887-0011 |
| Goldcoast Coin Exchange Inc 20929 Ventura Blvd # 14, Woodland Hills 91364 | (818) 704-8585 |
| Steve Rubinger 6320 Canoga Ave, Woodland Hills 91367 | (818) 592-2100 |
| Rare Currency Grading Svc Woodland Hills 91367 | (818) 710-8980 |