MAKE A MEME View Large Image ReflectingTelescope 007.jpg The mold and annealing furnace foreground and the furnace in which the glass is melted background National Institute of Standards and Technology 1927-01-01 National Institute of Standards and Technology ...
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Keywords: ReflectingTelescope 007.jpg The mold and annealing furnace foreground and the furnace in which the glass is melted background National Institute of Standards and Technology 1927-01-01 National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards National Institute of Standards and Technology Reflecting telescopes Telescope mirrors
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