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Canada Postage Stamps /
O - Official

Canada Stamps - O - Official

Canada Official Stamps were used between 1923 and 1963. These stamps were used for mail sent from, or by an authorised governmental agency. In Canada the first issues began with perforating regular issue postage stamps "OHMS" (On His Majesty's Service). In 1949, the practice of perforating stamps was discontinued and began the overprinting O.H.M.S. This overprint was used for only one year, being replaced by the single letter G in 1950.

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canada stamp o official o1 king george vi war issue 1 1949
Generic Image
O - Official #O1 - King George VI, War Issue (1949) 1¢ - O.H.M.S.
O - Official #O1 - King George VI, War Issue (1949) 1¢ - O.H.M.S.
Starting at$1.75
canada stamp o official o2 king george vi war issue 2 1949
Generic Image
O - Official #O2 - King George VI, War Issue (1949) 2¢ - O.H.M.S.
O - Official #O2 - King George VI, War Issue (1949) 2¢ - O.H.M.S.
Starting at$1.00
canada stamp o official o2a king george vi 2 1949
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O - Official #O2a - King George VI (1949) 2¢ - No period after "S", O.H.M.S in black
O - Official #O2a - King George VI (1949) 2¢ - No period after "S", O.H.M.S in black
Starting at$150.00
canada stamp o official o3 king george vi war issue 3 1949
Generic Image
O - Official #O3 - King George VI, War Issue (1949) 3¢ - O.H.M.S.
O - Official #O3 - King George VI, War Issue (1949) 3¢ - O.H.M.S.
Starting at$1.50
canada stamp o official o4 king george vi war issue 4 1949
Generic Image
O - Official #O4 - King George VI, War Issue (1949) 4¢ - O.H.M.S.
O - Official #O4 - King George VI, War Issue (1949) 4¢ - O.H.M.S.
Starting at$0.75
canada stamp o official o6 great bear lake nwt 10 1949
Generic Image
O - Official #O6 - Great Bear Lake, NWT (1949) 10¢ - O.H.M.S.
O - Official #O6 - Great Bear Lake, NWT (1949) 10¢ - O.H.M.S.
Starting at$0.23
canada stamp o official o7 hydroelectric plant 14 1949
Generic Image
O - Official #O7 - Hydroelectric Plant (1949) 14¢ - O.H.M.S.
O - Official #O7 - Hydroelectric Plant (1949) 14¢ - O.H.M.S.
Starting at$2.10
canada stamp o official o8 combine harvesting 20 1949
Generic Image
O - Official #O8 - Combine Harvesting (1949) 20¢ - Overprinted O.H.M.S.
O - Official #O8 - Combine Harvesting (1949) 20¢ - Overprinted O.H.M.S.
Starting at$2.80
canada stamp o official o9 lumbering 50 1949
Generic Image
O - Official #O9 - Lumbering (1949) 50¢ - O.H.M.S.
O - Official #O9 - Lumbering (1949) 50¢ - O.H.M.S.
Starting at$93.75
canada stamp o official o10 train ferry 1 00 1949
Generic Image
O - Official #O10 - Train ferry (1949) $1.00 - O.H.M.S.
O - Official #O10 - Train ferry (1949) $1.00 - O.H.M.S.
Starting at$35.65
canada stamp o official o11 oil wells 50 1950
Generic Image
O - Official #O11 - Oil wells (1950) 50¢ - Overprinted O.H.M.S.
O - Official #O11 - Oil wells (1950) 50¢ - Overprinted O.H.M.S.
Starting at$9.00
canada stamp o official o12 king george vi postes postage 1 1950
Generic Image
O - Official #O12 - King George VI, Postes-Postage (1950) 1¢ - O.H.M.S.
O - Official #O12 - King George VI, Postes-Postage (1950) 1¢ - O.H.M.S.
Starting at$0.30
canada stamp o official o13 king george vi postes postage 2 1950
Generic Image
O - Official #O13 - King George VI, Postes-Postage (1950) 2¢ - O.H.M.S.
O - Official #O13 - King George VI, Postes-Postage (1950) 2¢ - O.H.M.S.
Starting at$0.27
canada stamp o official o14 king george vi postes postage 3 1950
Generic Image
O - Official #O14 - King George VI, Postes-Postage (1950) 3¢ - O.H.M.S.
O - Official #O14 - King George VI, Postes-Postage (1950) 3¢ - O.H.M.S.
Starting at$0.20
canada stamp o official o15 king george vi postes postage 4 1950
Generic Image
O - Official #O15 - King George VI, Postes-Postage (1950) 4¢ - O.H.M.S.
O - Official #O15 - King George VI, Postes-Postage (1950) 4¢ - O.H.M.S.
Starting at$0.20