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nimrodd: Pentel International 1997 - p004
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nimrodd: Pentel of America 1979 Catalog, p15
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nimrodd: Pentel of America 1979 Catalog, p16
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nimrodd: Pentel Japan 1980 Catalog
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nimrodd: Pentel of America 1979 Catalog, p19
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nimrodd: Pentel of America 1980 Catalog, p22
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nimrodd: Pentel of America 1982 Catalog, p26
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nimrodd: Pentel of America 1984 Catalog, p20
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nimrodd: Pentel of America 1985 Catalog, p20
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nimrodd: Pentel of America 1990 Catalog, p30
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nimrodd: Pentel of America Catalog 1985 p17
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nimrodd: Pentel 1979 Catalog, p22