In this artist’s proof from Chwast’s “O” series of silkscreen prints, the designer again attempts to distill the most immediately distinguishable characteristics of his subject in cinematic close-up. Here, he represents legendary jazz musician Louis Armstrong with the smile that gave him the nickname “Satchmo” (short for “Satchelmouth”) and the trumpet with which he first established his reputation as a great jazz soloist in the 1920s.