C. Brandauer & Co manufactured fountain pens, the company was formed in the 1860's by Charles Emmanuel Brandauer. The company Brandauer pressings still exists today a couple of streets away but they no longer produce fountain pens.

I am unsure as to how long this place has been unused but it looks like it has been quite a while.

It' a decent place to look around but too be honest I was only there for about half an hour and didn't take too many pictures.

Here are some sample pictures I found on the net of some of there products

And here are some pictures of the place