I've been hovering hard over this thread, Not because I know enough, More hoping to hear a value. I have look from time to time at antique Desk sets, If I find a good one my lady friend will be really happy.
. What I do know is that these sets are really hard to find, and this one has candleholders. Wow, just look around and you will see they are very expensive. Bronze ones seem a bit less common. It seems we have established the german area, the label dates it to the 1880's. It does seem to be period and they really feel out of favor in the early 1900's. I wonder if the word "copyright" has any proof or disproof to the date. The screw on the back of the cherb looks old but also has a machine look to it. However I will say that I could believe the label. The only real thing we lack is maker and value. Wish I could help on the maker, but I will go out on a limb and say that if truly period $1,500.00 to $2,000.00, mostly because it is complete and look victorian, and lots of rich collectors and Interior decorators who would drool over something like this. I did see one go for 1,000.00 at a Auction in a box and was not near as nice and no Candleholders. I think you have a real treasure there