Unistyle - Late 1960s This light came from a fellow enthusiast in central Massachusetts. He saved this from the place he works. It had a bad ballast and was in rough shape when he saved it so he replaced the ballast with a 175W MH/MV and repainted the light after fixing some corrosion issues. This light is in great shape now! It also has an unusual, but original, refractor. It is a little rounder and deeper than the typical glass used on these. My other Unistyle, featured below, has the more typical glassware that these had. I obtained this light in July 2016. The exact date of this is unknown, but it is estimated that this is from the late 1960s.
Unistyle - Late 1960s This is my 100W MV 240V Unistyle. This one is all-original. I acquired this light from a fellow enthusiast in December 2017. Unlike the Unistyle featured above, this one has the more typical glassware. I have not compared the two to see which performs better photometrically. I plan to eventually compare the two.
NEMA Head Fixture - Unknown Date I don't know anything about the model number or age of this fixture but I do know it is a McGraw-Edison unit. It is likely from the 70s or 80s. It is 175W MV, 120V. This came from Taunton; removed when they went LED.