Furniture
Stereopticon slide. Series number 662.
From Mechanics' Institute 4th Industrial Exposition, 1864.

Glass bottles and jars
Stereopticon slide. Series number 663.
From Mechanics' Institute 4th Industrial Exposition, 1864.

Upholstered chair
Stereopticon slide. Series number 664.
From Mechanics' Institute 4th Industrial Exposition, 1864.

Seedlings in plot
Stereopticon slide. Series number 665.
From Mechanics' Institute 4th Industrial Exposition, 1864.

Third Mechanics' Institute Industrial Pavilion
Stereopticon slide. Series number 666.
From Mechanics' Institute 4th Industrial Exposition, 1864.

Library Building at 31 Post Street
  exterior shot, erected 1866
In 1866, the Institute sold its California Street property, bought the site of its present home on Post Street, and erected a three-story building at the cost of $79,750 .
Destroyed by fire April 18, 1906

Library at 31 Post Street
   (an interior view)

Library at 31 Post Street
  (west end of building)

Intersection of Market, Post and    Montgomery Streets
   (photo taken in 1868)

Fourth Mechanics' Fair Pavilion
Erected 1868, and torn down in 1871.

Portraits and Sculpture
Stereopticon slide. Series number 1421.
From Mechanics' Institute 6th Industrial Exposition, 1868.

Metalwork
Stereopticon slide. Series number 1486.
From Mechanics' Institute 6th Industrial Exposition, 1868.

Fifth Mechanics' Fair Pavilion
Erected 1874, and torn down in 1881.

Art Gallery
From Mechanics' Institute 9th Industrial Exposition, 1874.

View of Exhibits (1)
From Mechanics' Institute 9th Industrial Exposition, 1874.

View of Exhibits (2)
From Mechanics' Institute 9th Industrial Exposition, 1874.