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Author

Richard W. Helbock

8 books found

Cover of Postmarks of Territorial Alaska

Postmarks of Territorial Alaska

Michael Senta, Richard W. Helbock · First published 2020

Cover of Postmarks on postcards

Postmarks on postcards

Richard W. Helbock · First published 2002

Placeholder cover for United States post offices

United States post offices

Richard W. Helbock · First published 1998

Placeholder cover for Portland area postal history

Portland area postal history

Richard W. Helbock · First published 1983

Placeholder cover for Oregon post offices, 1847-1982

Oregon post offices, 1847-1982

Richard W. Helbock · First published 1982

Placeholder cover for Western doanes, the use of doane numeral cancellations in the Western United States

Western doanes, the use of doane numeral cancellations in the Western United States

Richard W. Helbock · First published 1982

Placeholder cover for Post offices of New Mexico

Post offices of New Mexico

Richard W. Helbock · First published 1981

Placeholder cover for Naval postmarks of territorial Alaska

Naval postmarks of territorial Alaska

Richard W. Helbock · First published 1978