Well, since you linked 2 of my screen used Crickets let me shed a little light. The first season Crickets up until the bitter end of season one had the paper labels. They were slightly silver in color more than the dove gray. That is the only silver I am aware of on any of them.
The other Cricket I have that is a hero with the missing button was one of the last used for season 1 but made for season 2. It is misted silver over dove gray. The rest from there on were dove gray unless they did quick redressings on older models to use when they needed more than they had.
First seasons very, very early Crickets were balsa wood them went to hollow cast resin...the same as the rest were made.