For sale is a Vacuum Cryogenic Environmental Chamber 6.5ft long, 60" Outer Diameter 53.5" Inner Diameter All dimensions are APPROXIMATE and subject to buyer verification. It was used by ISR Goodrich/Recon Optical to test optical spy camera assemblies used in spy planes and spy satellites. It has a sight glass and a big opening on one end. It also has a bunch of electronics and valves attached. It is up to the buyer to determine how to use it and what you need to make it work -- I cannot guarantee any electronic or other attachments, cables, connectors, etc. This chamber was located inside of a scientific lab and was only used for occasional tests. In separate listings, I have listed vacuum pumps and other control items that were in the same lab. No vacuum pump or cooling equipment is included with this chamber, they are listed separately. I have a 15 HP Beach Russ vacuum pump and several smaller pumps as well, and also refrigeration equipment, all coming from the same lab. I also have a larger chamber for sale as well, check my other listings. Freight shipping by flatbed truck only. Delivery in Chicagoland is available for a separate fee.