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These are the inner glass assembly panes for the window in one of the two hatches of a Gemini capsule. The window's outer glass assembly had a single pane and the inner glass assembly had two panes. All three panes in the right hatch window were optically ground for better resolution. Corning Glass made the panes of Vycor, which was 96% silica. These two panes are marked as being optically imperfect and were used solely for testing. NASA transferred them to NASM in 1969.
Display Status
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin
United States of America
Type
SPACECRAFT-Crewed-Parts & Structural Components
Manufacturer
Corning Glass Works Dimensions
Box: 21 1/2" x 13 1/2" x 2 3/8"
Window: 16 1/4" x 8 3/4" x 3/8" Materials
Glass
Paper
Adhesive
Ink
Wood
Paint Inventory Number
A19690058000
Credit Line
Transferred from the National Aeronautics and Space Administration
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
For more information, visit the Smithsonians Terms of Use.