I have a lot of Soviet aviation pins and badges from a collection I bought about 15 years ago. Some of the more modern types, like Chirs showed, and lots of wings. Here are some screw backs with long central screw posts on the back. One of these,below, shows heavy wear on the enamel star with #3. I think these came before they were worth making copies. I am looking for a good reference/value guide to all the variations. This is the only thread that came up with search for Soviet, Russian, Aviation, Pilot badges with trying several variations of the above. What metal are these and are they plated? Any leads appreciated. I collect mostly Imperial German aviation. Always open to trades.. Are these covered in either the "red bible" or the "green bible?" Here are a couple of samples of one type. There are many different types in several hundred examples. most are all different.