3 Antique Very Unique Glasses - Spectacles One Is 12k Gold Filled Unmarked

I got these three antique spectacles/glasses from a collector at a yard sale a long ways back. One is gold filled it's not marked but I checked it on a machine It keeps coming up 12 karat gold filled. The other one that's in the listing is very unique the actual arms that are on it can be extended longer or shorter seen in the photos. Which I've never seen before so if you have a bigger head I guess you can extend the arms longer. If you have a smaller head you can make them shorter very unique. All three glasses are different. I believe the one that has the arms that extend I think it has the picture of a crown on one arm and the other arm says I and O which might be a manufacturer I'm not sure. I tried to take a picture of that.