I have a set of nav lights. they are aprox 120mm high and 100mm wide. They have an anchor
symbol on them and an "A" enclosed in a rounded triangle and the SK77 beside it. The lens are plastic and the body is stainless. They have been made with a clip and lever on the back so that they can be removed. (like a very old bicycle lamp). They are not old. I would love to know who made them and where they came from. They have no country of origin and have individual number stamps on them. They are generally of a high quality.
Any one Know any further ?