美国 - 公务邮票 (1873

[Department of State Issue, 类型 G1]

[Department of State Issue, 类型 G2]

[Department of State Issue, 类型 G3]

[Department of State Issue, 类型 G4]

[Department of State Issue, 类型 G5]

[Department of State Issue, 类型 G6]

[Department of State Issue, 类型 G7]

[Department of State Issue, 类型 G8]

[Department of State Issue, 类型 G9]

[Department of State Issue, 类型 G10]

[Department of State Issue, 类型 G11]

[Department of State Issue, 类型 G12]

[Department of State Issue, 类型 G13]

[Department of State Issue, 类型 G14]