Two copies of a typed letter, printed on paper with a printed letterhead, dated 17 September, 1937. Letter is from the Secretary of Knox Home to the Managing Director, Scalebuoys (New Zealand) Ltd. He mentions he has enclosed a cheque for payment of the Scalebuoy equipment and they were quite satisfied with it.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, n a duthie, national mutual life chambers auckland, knox home, scalebuoys (new zealand) ltd

Two page letter to Mr. R. H. S. Abbott from the Managing Director of Scalebuoys (New Zealand) Limited. (Signature illegible). Dated 25 September, 1936. Letter typed in blue with red underline on paper with printed letterhead. It has a green scalebuoy with Scalebuoys (New Zealand) Limited printed across it. The letter mentions that goods were consigned by Hardley's per the S. S. 'Aorangi'. He is also asking if any Scalebuoys have been used in connection with Sewerage Works. He also mentions at the end that he has attached some photo of Mr. R. H. S. Abbott and Dr. Abbott.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, national mutual life chambers, mr r h s abbott, hotel australia sydney, hardley's, s s aorangi, aukland and suburbs drainage board, dr abbott

Two printed Application Forms for Hiring Radio-electric Medical Units. Secretaries and address printed at the top of the page. The first page mentions how the Scalebuoy works and its effects on the water. Also the different things that can happen to the body. On the back are Instructions for the Use of the Radio-electric Medical Unit and the hiring of the Units. A form is at the bottom of the page for the Medical Officer to fill in as it required a Doctor's order to hire one.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, the electronic company of new zealand limited, mr wallace, mr bruce, mr duthie, mr voyce, national mutual life chambers, radio-electric medical unit, application for hiring radio-electric medical units