This silver-mounted violin bow by Heiko Wunderlich was made in 1990. It also dates from when I started trying to resume wholesale of musical instruments. 
The bow is made of high quality, light pernambuco wood. The round bar is elastic and plays fluid and soft. The ebony frog has a shimmering pearl-slide, but is otherwise fairly simple. The head is finely worked and you can clearly see that Heiko learned how to build bows in H.R. Pfretzschner's workshop. 
 
The bow weighs 62 g and its center of gravity is 26.4 cm of the total length of 74.2 cm. 
 
You can find out more about Heiko Wunderlich here www.heikowunderlich.de