JohnEnders(1897-1985).

American scientist & Nobel Laureate in Physiology or Medicine (1954). An Head and Shoulders Portrait Signed, black and white, 5 in. by 7 in, no place or date. Signed and inscribed: "For Peggy Willis with best wishes from, John F. Enders". Enders autograph is considered rare in any form.Enders and his co-workers (Thomas Weller and Frederick Robbins) were the first to show that the polio virus could be grown in monkey kidney cells in a test tube. Once this was known, polioi virus could be produced in sufficient quantities to produce a vaccine. This was more important than actually making the vaccine and it is why Enders, et al received the Nobel Prize and not Salk and Sabin. In fine condition. $250.