I am back with a few update about the look of the storm glass barometer at three different weather conditions.
This is how the storm glass barometer looked like when we hade a few days with really excellent weather.
As it still seems to fit the description.
Second picture show how the fluid looks like 24 hours before a gale 10 storm arrived. As you can see the parts in the fluid looks a little feathery. As the description says it should. So the first one is correct.
Third picture are before some light snowfall. It came snow though not really much, just about 5 cm. Anyhow I would say this is as well correct. The fluid should be mostly on top with some stars moving in it.
Here above are two different model for sale on Amazon