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![Figure 44 ship4338.jpg Figure 44](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4338.jpg?itok=J06GZJIw)
Description
Figure 44. Magnaghi helical mounting (improved model.) This model resultedfrom the suggestion of Giovanni Battista Magnaghi to the London instrument makers Negretti and Zambra, in 1881, to follow the ideas developed on the Italiannavy ship WASHINGTON. Left: before reversing. Right: after reversing. (Image credit: Oceanographic Museum of Monaco | Y. Berard)