American Optical History
Then and now
The Glass Plant Roof -
"the Claw" in 1970's and 2010
1970's photo across the pond with the
Powerhouse in the foreground and Glass Plant with the Claw roof
vent
A view thru the trees showing the roof without the Claw - May 13, 2010
Dad,
the
AO Glass plant, and his demonstration to me of the properties of Prince
Ruperts Drop