This is the Bay 60 polarizer for most of the CF and later lenses. Use it to reduce unwanted reflections from your images. It would be especially useful anytime you have waater, windows, or other reflective surfaces in your shots.
It is in excellent condition with light wear. The glass is clean and scratch-free and the mount shows light wear.
It comes in the box the original case. The box shows moderate wear but has plenty of life left.