Easy chair retinal circus vancouver concert 1968 canadian promotional only 5 x 7 12 postcard for the june 20 1968 concert at the retinal circus vancouver headlined by easy chair just months before jeff simmons was discovered by frankzappa when easy chair were booked as a support act for a mothers of invention concert in seattle other bands lost in the midst of time on that date were fast freight mock duck paisley rain the loyalists ectoplasmicassualt the retinal circus pos