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Sisters Islets, FI(2) 15s 21.3m 21M Radio Beacon -- (M)

Sisters Islets, FI(2) 15s 21.3m 21M Radio Beacon -- (M) Canada Postage Stamp
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Sisters Islets, FI(2) 15s 21.3m 21M Radio Beacon -- (M)
Date of Issue
October 3, 1985
Postal Administration
Lighthouses of Canada
Series Time Span
1984 - 1985
Perforation or Dimension
Ashton-Potter Limited.
Designed by Louis-André Rivard.
About Stamp
Today's lighthouses warn sailors of shoals and dangerous shorelines under all weather conditions. Day and night, rain or shine, these stations stand out from their surroundings with contrasting forms and colours, making their presence known by powerful beacons and foghorns. Many also emit radio or radar signals. These stamps, which illustrate four modern navigational aid stations, complete our 1984-85 series on historic and modern Lighthouses of Canada. Located on a rocky islet between Vancouver Island and the mainland, Sisters Islet light guides the many ships sailing between southern and northern British Columbia and between Washington State and Alaska. Its light, visible for 38.9 km in clear weather, is assisted by foghorns and a radio beacon when conditions require. Two teams of keepers, flown in by helicopter, alternate duty every sixteen days. Montreal designer Louis-André Rivard chose an approach that comes naturally to him - that of a sailor - to illustrate the second stamp issue commemorating Lighthouses of Canada. The designs feature four modern lighthouses as viewed from the open sea. The inscriptions reproduced on each stamp are the same as those a sailor might find in studying marine maps and other navigational aid publications, giving details on the lighthouse's beacon. They indicate the light's rhythm, colour, height above sea level, and the distance from which it can be seen. The inscriptions also note the communications equipment available for use in the lighthouses. For example, in the case of the Haut-fond light, the inscriptions convey the following meanings: Fl 2½s: flashes a white light every 2½ seconds; 25.3m: elevation of light in metres above sea level; 20M: visible for 20 nautical miles (37 km) in clear weather.
Canada Post Corporation. [Postage Stamp Press Release], 1985.
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