This is a vintage poster advertising a magic act by "Kellar" featuring "Self Decapitation". The poster features a full-body illustration of a bald man, presumably Kellar, seated on a wooden chair. He is dressed in a dark suit with a light-colored shirt and tie. His right hand is raised in a gesturing pose, while his left hand appears to be holding something, possibly a head or a prop related to the illusion. The background is a dark, almost black, with a subtle golden or yellow gradient. The text is prominently displayed in a stylized font. "Kellar" is written in large, red letters at the top. Below that, in smaller yellow letters, it reads "In His Latest Mystery". At the bottom, in large yellow letters, is the title of the act, "Self Decapitation". The poster has a vintage, slightly distressed look, with some wear and tear visible around the edges. There is a small inscription in the lower right corner that reads "Saml. Livingston Lith. Phila.". The overall aesthetic is dramatic and mysterious, typical of vintage magic posters.