Click to see detail. Best viewed at 1024x768 | Item# | Country | Date | Cat-ID | Description | Price | Source |
| 99259 | Panama | 1973 proof | km12b | 1/2 Balboa (1973-1993) cu-ni clad copper | $2.50 | A |
| 99260 | Panama | 1974 proof | km12b | 1/2 Balboa (1973-1993) cu-ni clad copper | $2.50 | A |
| 106382 | Panama | 1975 | km12b | 1/2 Balboa (1973-1993) cu-ni clad copper | $8.00 | A |