What is this? Unknown Dr Heinr Traun Bronze Medal Hamburg 1856-1891??

Hi Guys. This one has me totally stumped. Can't find another anywhere?

Please see the attached images.

Any help or guidance would be appreciated.

Seasons greetings to all.

Dr. Heinrich Traun & Sons
Harburger rubber comb Company
Hamburg-Harburg 1856

I found this, this and this.Don't know if it's any help though.

Here's some wiki sites in German:
Heinrich Traun
New-York Hamburger Gummi-Waaren Compagnie​

I'm afraid that's all i could find. Sorry.