Specifications
| Key | Bb |
| Lead pipe | Standard taper |
| Bore | 0.459" (11.65mm) |
| Bell | Two piece, hand-hammered |
| Bell material | Yellow brass |
| Bell diameter | 4.92" (125mm) |
| Valves | Lightweight, stainless steel |
| Spit valve | Traditional water key system |
| Finish | Gold lacquer |
| Bell decoration | Hand engraved |
| Lead pipe material (TR-860) | Yellow brass |
| Tuning slides material (TR-860) | Yellow brass |
| Lead pipe material (TR-860S) | Cupronickel |
| Tuning slides material (TR-860S) | Cupronickel |