Vintage La Parfaite Paris Opera Glasses With Case

I have this unique pair of opera glasses and I can't seem to locate any information on them. They are in beautiful shape and come with a unique case that offers a glass mirror in the bottom. They are labeled La Parfaite Paris on Lense pieces. They are about 3.5 in long and about 3.5 wide. Does anyone know what period they are from ? If you have any info please share.