Posted 6 years ago
Here are a couple examples of Kerr 45 style. They do not come in many colors. in the photo is
Olive green tint with flat dome
Clear with cobalt blob
there is a lot of different opinions about the blue blob, some say they were made accidentally, some say they were made for collectors, then others have said they have been found in service. So who knows, there are not to many around and they are pretty cool so regardless I am glad I have one in my collection. Otherwise these pieces come in clear, and off clear which are the most common.