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The National Benzole Company was established in England in the
years following World War I to market motor fuel fortified by
benzole. In the late Fifties, National Benzole was acquired by
Shell-Mex & BP Ltd. Despite the acquisition, the company
remained an independent brand. This map was issued around
1959, just after the Mercury logo was modernized but before
the "Benzole" was dropped from the brand name.
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This map was issued by Britain's National brand in 1978. By
this time, owner Shell-Mex & BP Ltd. had been dissolved and
their joint assets divided. Some National stations were
converted to Shell. BP acquired the balance and retained the
National brand until around 1984.
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