Just found a pair of old Anco 16's at Carlisle,
haven't got refills for them yet. They were on Anco arms. I also have a couple sets of Trico arms. I like the little tabs on the Trico that lock it on the spline and hold the spring arm straight to remove it from the car. The Anco's have a latch tab underneath- not sure how you are supposed to release it? And you have to fight the spring to pull it off ( I assume there is a right way to remove them)​