Ontario broken circles
By: W. Bruce Graham ; edited by David Handelman.
Contributors: Handelman, David, 1950-; Postal History Society of Canada.
Publisher: Postal History Society of Canada
Published: 1999
Place of publication: Ottawa
Language: eng
Number of pages: 246
Subjects: Cancellations (Philately) -- Canada -- Ontario.; Postmarks -- Canada -- Ontario -- History.
Notes: "and other datestamps used in Upper Canada, Canada West, as well as Ontario, including double circle, double broken circle, enclosed broken circle, oval, straightline, and manuscript types."