- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Student / Alto 05535
- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Student / Tenor 05441
- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Stencils / H-Couf / Couf Mouthpieces / Bari Artist 5R MP
- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Stencils / H-Couf / Couf Mouthpieces / Bari Metal #6 MP
- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Stencils / H-Couf / 3200 / Alto 319230
- German and Czech Makes & Models / Julius Keilwerth / Horns Pre-1990s / Stencils / H-Couf / Superba I / Bari / Baritone 55760 (low A)