Featured Czechoslovakian Earrings? Minor Pendant & Hat Pin

I loved these screw back earrings immediately because of the tiny blue enamel flowers. So small. I think the back of the screw says Czechoslovakia, but I couldn't get a good photo to share, so I am hoping someone recognizes them.



I think I made a bad decision on this pendant. I thought at first glance it could be interesting, but the only marks are the cut outs on each side which are playing card symbols - hearts, spades, diamonds and clubs. Just Las Vegas trinket?



The last thing is this hat pin. I don't know anything about them. Is this newer?

 

Maybe better picture

 

Czechoslovakia is what I see too.

 

Wonderful. Thanks. That gives me time frame.

 

Thank you. Found them on ebay. L
Czech Red Glass Enamel Flowers Gold Tone Filigree Screw Back Earrings | eBay

 

The hat pin is no older than mid 50's when aurora borealis rhinestones were invented unless they are replacements. I've never seen those marks on a necklace, interesting!

 

Agree on Czech and AB dating. Interesting to get that detail on the side rather than somewhere more visible.

 

I didn't think of the Rhinestones. That you for pointing this out. I was hoping for older. But that's the way when you are learning.

 

I was thinking lucky charm of some kind. Purple glass?