A very interesting old he-ne was just added to the archive with thanks to our own Laserbuilder, who shipped it all the way from Odessa, Ukraine. It's the 1986 LG-126 tunable he-ne shown below. The tube is cracked, but all the pieces are intact. There is a turret on the rear end that holds three High Reflecting mirrors, allowing the appropriate one to be used to give an output at 0.63, 1.15, or 3.39 microns.