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![Ernst Georg Fischer, designer and builder of Old BrassBrains, mechanical tide prediction machine No pers1052.jpg Ernst Georg Fischer, designer and builder of Old BrassBrains, mechanical tide prediction machine No](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_pers1052.jpg?itok=IY_VI1mi)
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Ernst Georg Fischer, designer and builder of Old BrassBrains, mechanical tide prediction machine No. 2 of the C&GS.;
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NOAA People