Mugo pine, Pinus mugo, collected in Switzerland in 1994. First image as of 1995 when I acquired it from Serge Clemence.
Second image as of last summer at the exihnit in Botanical Garden, Munich.
Walter has worked one week on this tree recently: plucking old needles, editing very dense growth, cleaning deadwood, painting deadwood, wiring everything, placing branches. See the splendid result. The most ugly guy wires unfortunately are very necessary to hold the tree into an upright position. Next April we plan to repot the tree, getting rid of the guy wires and turning it one our counter clock wise in the pot. We'll report.
This is Walter's master piece so far.