Vintage Johnson & Johnson’s Dental Floss 24 Yards 2 1/8" Glass Tube Advertising

Description

A Vintage Johnson & Johnson’s Dental Floss 24 Yards Glass Tube
is offered here. 2 1/8" long tube.
In the 2nd photo there is a dark line. At the darkest part in the middle
of the line my fingernail can feel a ridge. I honestly cant tell if it is a crack in the
glass or something in the glass. In any case, it does not seem unsafe to me.
I displays well and doesn't seem weak there.
Use the zoom and ask questions if you have any.