obrien.observatory 的钱币相册
1807 1C Comet N1BN
PCGS #1531
1813 1C N1BN
PCGS #1570
1818 1C MS62BN
PCGS #1600
1851 1C N1BN
PCGS #1892
1883 5C No CENTS MS62
PCGS #3841