Description:1966 Bill Russell twice autographed personal check (PSA/DNA 9 MINT). September 17, 1966 dated "Bill Russell Enterprises, Inc." check has been signed "William F. Russell" on front with additional "Bill Russell Enterprises" endorsement underneath. Typical bank cancellations on front. One of the higher condition grade checks in the Russell Collection. Encapsulated by PSA/DNA with special "Russell Collection" pedigree labeling and includes certificate of provenance from Bill Russell: PSA/DNA (9 MINT)