Many modifications have occurred in this building since it was completed in the 1890's, such as drop ceilings, lighting, heat, blinds and new layers of paint.
Main entrance of the 1870's era Administration Building at the former Mare Island Naval Shipyard.
The Administration Building at the former Naval Shipyard in Vallejo, California is the oldest building's on the grounds, but since the construction in 1870, many modifications have been done. Here, they have added ceiling tiles, carpet and modern office lighting fixtures.
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