Based on our knowledge and years of experience, Adams has created a Series of Selected Models, drawn from all of the possibilities offered in Adams Custom Series. The Selected Series is a clear overview of the most popular, or, in our opinion, the best combination of specifications from the thousands of possibilities found in the Adams Custom Series. Please note that changes to the Selected Model specifications found in the Selected Series are not possible. Alternatively, please see the Custom Series configurator and price list on the following pages in order to build an instrument to your own specific requirements. E1 selected model: Bell: Yellow Brass - 305 mm; Bore: 15 mm - 1st, 2nd, 3rd valve and 16 mm 4th valve; Finish: Silver plated; Gauge 0.60;