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Chelsea Show
RM/4/19/1 · Item · 1977

Correspondence concerning show exhibiting plants for the Scientific Section infected with non-indigenous mycoplasma and spiroplasma diseases at the Chelsea Show 1977.

Chelsea Show
RM/14/1 · Item · 1977
Part of Roy Markham

Correspondence and plan for the Scientific Section of the Chelsea Show 1977. Request to show plants infected with non-indigenous mycoplasma and spiroplasma diseases.