File:Mechanical Arts Building (California Academy of Sciences), California Midwinter International Exposition of 1894.png
![File:Mechanical Arts Building (California Academy of Sciences), California Midwinter International Exposition of 1894.png](https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Mechanical_Arts_Building_%28California_Academy_of_Sciences%29%2C_California_Midwinter_International_Exposition_of_1894.png/800px-Mechanical_Arts_Building_%28California_Academy_of_Sciences%29%2C_California_Midwinter_International_Exposition_of_1894.png?20220729033326)
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