Филателия, почтовые марки, надпечатки, почта

Obock

DJ overprinted on stamps of Obock

Somali Coast

Obock

DJIBOUTI overprinted on stamps of Obock

Somali Coast

Obock

OBOCK overprinted on stamps of French Colonies

Obock - 1892

Oltre Giuba

COMMISSARIATO GEN DELL OLTRE GIUBA

Oltre Giuba - 1926

Oltre Giuba

OLTRE GIUBA overprinted on stamps of Italy

Oltre Giuba - 1925-1926

Oltre Giuba

OLTRE GIVBA

Oltre Giuba

Oman

MUSCAT & OMAN

Oman - Muscat and Oman

Oman

SULTANATE OF OMAN

Oman - Sultanate of Oman

Oman

SULTANATE OF OMAN overprinted on stamps of Muscat and Oman

Oman - Sultanate of Oman

Ontario Law Stamp

GASOLINE TAX overprinted on stamps of Ontario Law Stamp

Canada - revenue stamp - gasoline tax

Orange Free State

CSAR overprinted on stamps of Orange Free State

Orange Free State - railway stamp - 1905 - Central South African Railway

Orange Free State

CUSTOMS DUTY overprinted on stamps of Orange Free State

Orange Free State - revenue stamp - 1912 - customs

Orange Free State

OVS and RDM

Orange Free State - official stamp - 1896-1899 - Rijdende Dienst Macht - mounted police force

Orange Free State

RDM and OVS

Orange Free State - official stamp - 1896-1899 - Rijdende Dienst Macht - mounted police force

Orange River Colony

ORANGE RIVER COLONY overprinted on stamps of Cape of Good Hope

Orange River Colony

Orange River Colony

ORANJE VRIJ STAAT

Orange River Colony - Oranje Vrij Staat is German for Orange Free State