Baird GP/NVG-1
The Baird GP/NVG-1 is a bi-ocular night vision housing produced by the company Baird in the early 1990's in the United states. The device is a predecessor to the PVS-7A and PVS-7, are a few key features present from the old design, that has followed over to the newer designs. It uses an EEV M849 tube format, with a concave input. This makes the device incapable of accepting only that format, and will not fit PVS-7 tubes.
The device is powered by an E132 battery, which seems to be almost non existant to this day, and remains a battery of old time. However, it works with any 3 volt battery that may fit into the battery compartment.
History
Baird was originally a company created around the late 70's, early 80's but is not certain, as there is very limited information on the company. Baird has however delivered the GP/NVG-1 device to several militaries around the world, including Spain and Denmark. Baird as a company was later taken over by Litton, and it is unsure if they seized production of the GP/NVG-1.