I'm not Sue

but I think they look French. However I also have another piece of glass that has this fluffy technique in the colour and I've not been able to work out where it's from.
My first port of call on research for your glasses would have been Schneider but I can't find a match to the shapes and I'm not sure if they did that glass shape. I believe they did use the green and orange combination. And I don't think they always marked their glass - or not their table glass.
Someone may be along to correct me though
As I said, it's just a thought not a definite.
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