abandoned
decay
glass pipe
glass tube
glass tubing
lab
laboratory
presidio landmark
trespassing
tube
urban exploration
vaccum tubing
vacuum
valve
Glass vacuum tubing and valve in the research lab.
The abandoned Public Health Service Hospital ("PHSH") is located in the Presidio of San Francisco. For more information about this place you can visit my series of photos of the San Francisco abandoned hospital.
Photo © Tristan Savatier - All Rights Reserved
Route Hays, San Francisco, CA 94129, USA - View Larger Map - View location on Google EarthGet the code to include this photo in forums and blogs: