Vintage 800 Silver Lipstick Case

Vintage 800 bright cut silver lipstick case is signed 800 and a maker's mark I cannot read and features a blue stone which acts to hold down the pop up mirror and to push up the lipstick.  The case measures 1 3/4 inches by 5/8 inch wide and it weighs 21.1 grams.  The mirror is darkened at one end as can be seen in the photos.  No other issues.