One professional and heartfelt letter from one NBA teammate to another, after the years have passed, and priorities have changed from stats and wins to helping out another basketball player in need, as is the subject matter here, written by William (Bill) F. Russell (MVP ’58, ’61-63, ’65) to Bob Cousy (MVP ’57), Boston Celtic teammates and builders of the dynasty that was Boston in the 1960’s, regarding the philanthropic Basketball Alumni Foundation. Focal point here is Bill Russell’s rare full signature, at end of typewritten letter, in black ball-point, and rating an 8.5/10.