1963–1964 Products: Mouthpieces, Brass Instruments Brand names: Stradivarius Location: 50 South MacQuesten Parkway, Mount Vernon, New York Serial Numbers: 25,000 – 29,999 In 1961 Vincent Bach was 71 and the company was acquired that year by The Selmer Company, with Bach staying on as a consultant and continuing to work until at least 1974. Bach accepted the bid from Selmer even though some others of the 13 which he received were higher. Selmer asked Bach, as the first task in his new (lifetime) position as technical consultant, to redesign his trumpet so as to eliminate the unique one inch pull required to be in tune, in favor of a standard 1/2 inch pull. This design was dubbed the model 180. Elkhart Period Early Elkhart Time frame: 1965 – ca. 1974 Products: Mouthpieces, Brass Instruments Brand names: Stradivarius, Bundy(Selmer name no longer used) Location: Main Street, Elkhart, Indiana Serial Numbers: 30,000 - around 100-110,000 It is believed that Vincent Bach continued customizing a small number of horns at the old Mt. Vernon facility for special customers. The bulk of tooling, along with many parts and assembled horns, were relocated to a former Buescher plant on Main Street in Elkhart Indiana where production started in January 1965. Horns of this period featured an increase in the thickness of bell-making stock to 0.025" from the 0.020" New York standard that was reclassified in Elkhart as lightweight, and denoted by a star on the bell. The wire inside the rim bead changed to being steel and can be detected using a magnet. Elkhart Time frame: ca. 1974 - 2010 Products: Mouthpieces, Brass Instruments Brand names: Stradivarius, Bundy(brand retired mid-80s), Bach, Prelude (imported stencil product introduced after 2000) Location: 600 Industrial Parkway, Elkhart, Indiana Serial Numbers: around 110,000 - around 525,000 Less than a decade after starting-up the Main Street plant, production moved again to a Conn factory belonging to the Selmer Company on Industrial Drive in Elkhart, alongside of which the Conn-Selmer corporate offices are located presently. The Bach line of brass instruments continues to be made in Elkhart, Indiana, using the same blueprints and the same techniques as the originals. They are sold as a premium brand under the name “Bach Stradivarius” as well as the student line “Bach” horns, manufactured in Eastlake Ohio. Design changes that followed included transitioning from the 2-piece valve casings Bach had always used to a more cost-effective,