** Workshop Siefert BowThe ** W. Siefert bow is a marked step up; these are made in Lothar Sieferts workshop, designated by the W for workshop. Rather than Nickel, these feature silver mounts. However, the lapping is still silver on nickel and will wear with time. This one came to me without a button and is offered at a commensurate discount, $200 off msrp. Balanced at 61. 5 grams.