GB/NNAF/P134113 (Former ISAAR ref: GB/NNAF/P46642)
|Scope||c1952: notes and papers rel to Lord Acton and Sir Herbert Butterfield|
|Repository||Cambridge University Library: Department of Manuscripts and University Archives|
|Record Reference||MS Butterfield/318 link to online catalogue|
|NRA catalogue reference||NRA 37572|
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