Broken glass tube, Troppen or Tropfen written in the glass?

Question

I would like to know what it might be, its about a 1/2 inch diameter, and what's left of it is about 3-4 inches high. It also has Koenics written above Troppen.

Answer 1

The word was probably "tropfen" which means "drops. The dimensions you cite suggest the piece of glass tube may have been part of a pipette or similar device.

Answer 2

Tropfen means drops in German.    Maybe Koenics is the company.  

Is this a glass tube for heating substances over a bunson burner?