This is a VERY RARE SET. Gebruder Bing was founded in 1863 by Ignatz & Adolph Bing. They started out with kitchen items and later expanded to toys and became one of the largest toy manufacturers in Europe. They closed in 1932. The were originally known as a copper factory. There is a copper tea/coffee set on eBay at this time. They are asking 799. This 4 pc set is even more rare because it is done in silver. Both pots are marked 3/4L. The sugar is marked 100g. There is no mark on the creamer. I have no idea as to the metal content of this set. This set most likely dates from 1906-1912. It is in excellent condition.