Altus 1107 E Transverse Flute, closed holes, E- mechanism, offset G, C- foot, .958 Britannia silver flute, silver plated nickel silver mechanism, professional style sterling silver headjoint, stainless steel springs, 442Hz, incl. case. The 1107 provides a strong tone with darker colors than its lower counterparts. Perfectly rich in tone and precisely crafted, this model is designed to handle the demands of the aspiring and talented flutist. The 1107 and 1007 models are favored by advanced students, woodwind doublers, and teachers alike.