| Description | 2 letters to Dr Paul Whalley, British Museum (Natural History) from Dr Douglas Kroon, Sasolburg, South Africa and 1 from Dr Whalley. 1 letter to Dr Klaus Sattler, British Museum (Natural History) and 1 from Dr Sattler. 1 letter to Dr Gaden Robinson, British Museum (Natural History) and 1 from Dr Robinson |