The Model 1 is a beautiful tenor trombone hand built in Germany by Manfred Schmelzer. It has gorgeous hand engraving, silver plate finish with gold plated trim.
This is the lead horn for when you need to lead, to solo, and make it happen. If you know the Williams style trombones from eras past, and similar designs from Zig Kanstul and Steve Shires, you'll love the Schmelzer models.
Manfed Schmelzer has been building trombones for many years and has fans worldwide. Doug Elliot, master mouthpiece maker and lead trombonist, has been a Schmelzer proponent, along with many others.
I wish I knew more about the specs and the metals, I'll ask Manfred and see. Other bell materials or custom finish are available by special order.