Description:Lot of (4) Bill Russell autographed documents c.1970-80s. All are signed in desirable full name "William F. Russell" format to include: 1980 Invoice signed by Russell in blue ink at bottom; 1977 Power of Attorney document signed by Russell in blue ink at bottom; 1973 multi-page documents with (3) Russell signatures in blue ink; and Security system agreement signed by Russell in blue ink at bottom. Includes auction LOA from JSA and four individual certificates of provenance from Bill Russell: Range EX-NM