Sir J. Somers Vine, London, to Simms reproposal from George Gray, Mining Engineer of Western Australia, 1896-07-13 Unit ID: 33 Date: 1896-07-13
Stecher to Hendriks, London, asking for an appointment to discuss the motor business, 1891-06-23 Unit ID: No. 34 Date: 1891-06-23
Stecher to Hendriks, London, that both motors already sent to Australia, 1891-06-27 Unit ID: No. 42 Date: 1891-06-27
S. Tolansky to Dr. R. Hatch that he has sent Dr Golay some Australian mica, 1950-09-25 Date: 1950-09-25
S. Tolansky to Dr R. Hatch, U.S. Bureau of Mines, asking if he is able to obtain supplies of Australian mica, 1950-09-29 Date: 1950-09-29
S. Tolansky to J.H.G. Mitchell, Ministry of Supply, London re Tolansky's views of the superiority of Australian mica, 1951-03-02 Date: 1951-03-02
S. Tolansky to J. Mitchell sending reports on Australian mica and synthetic mica, 1951-02-20 Date: 1951-02-20