Johann Georg Thir 3/4 cello, ca 1770, Vienna | Metzler ViolinsJohann Georg Thir (c. 1710 1779) was born in Prim, Schongau, Germany and mainly worked in Vienna. His instruments are highest quality Viennese style with a high Stainer arch (somewhat reduced arch after 1775). Most of his instruments use a long model, with dark, semi transparent chocolate varnish. This 3 4 cello was made circa 1770 in Vienna.