Ivan Pivac, a blind man wearing spectacles which provide guidance with the aid of ultrasound, with Leslie Kay, the inventor of the device. Photograph, 1970.

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Due to essential maintenance, we won’t be able to retrieve items from our closed stores over the weekend. Please submit requests for Monday 20 April by 10:00 on Friday 17 April. The library will remain open as usual. Thank you for your understanding.

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Kay, Leslie (Professor of electrical engineering at Canterbury University, New Zealand)

Works from the collections

Ivan Pivac, a blind man wearing spectacles which provide guidance with the aid of ultrasound, with Leslie Kay, the inventor of the device. Photograph, 1970.