The article concerns Bocheński's thus far unpublished considerations pertaining to signs that are among the materials in my archive. Of particular interest are Bocheński's reflections on the ontological, psychological, and epistemological foundations of the theory of signs. In his semiotics the concept of the sign is broadened to include application to the logic of authority, the concept of bi-directionality of human phenomena as well the theory of "philosophical superstitions'.