Postmarks
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PM JPN 1967 Sept. 17th Warabi city - 22nd national athletic meeting
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PM JPN 1968 Aug. 30th - 23rd national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1969 Sept. 10th - 24th national athletic meeting
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PM JPN 1969 Sept. 6th Nagasaki - 24th national athletic meeting
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PM JPN 1970 Sept. 7th - 25th national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1971 Aug. 2nd - Inter highschool championships
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PM JPN 1971 Aug. 2nd Mijakawa - national junior championships
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PM JPN 1971 Oct. 10th
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PM JPN 1971 Sept. 4th - 26th national athletic meeting (3 different PM)
Olympic pictogram No. 1 
Wakayama (upper row)
Tokyo (lower left)
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PM JPN 1972 Sept. 14th Kanoya city (Kagoshima prefecture) - 27th national athletic meeting
Takakuma post office
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PM JPN 1973 - 28th national athletic meeting (3 different PM with Olympic Pictogram No. 1)
1973 Sept. 8th Chiba (upper left)
1973 Sept. 8th Omigawa (upper right)
1973 Sept. 11th Omigawa (lower left)
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PM JPN 1973 Aug. 2nd Misedami (Mie prefecture) - 48th high school championships
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PM JPN 1974 Sept. 8th - 29th national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1975 Aug. 2nd Warabi - 23rd Highschool Championships
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PM JPN 1975 Sept. 14th Yokkaichi city (Prefectura Mie) - 30th national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1977 Sept. 4th Mutsu (Prefektura Aomori) - 32th national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1978 Aug. 1st Ogino (Prefektura Fukushima) - 53rd all-national inter-liceum rowing contest (Olympic pictogram No. 1)
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PM JPN 1978 Sept. 10th Nagano central post office - 33rd national athletic meeting (Olympic pictogram No. 1)
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PM JPN 1979 Aug. 1st (Olympic pictogram No. 1)
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PM JPN 1979 Sept. 16th Miyazaki + Shintomi (Prefectura Miyazaki) - 34th national athletic meeting (Olympic pictogram No. 1)
