NEAR MINT. Thin Stock Handbill. October 31st – November 3rd, 1968. The Retinal Circus, Vancouver. Artist: Frank Lewis, Velvet Underground, Black Snake, Ecto Plasmic Assault. The Retinal Circus was a short-lived dive that operated from the summer of 1967 until November 3, 1968, when the Velvet Underground played the last show there. Rare.