[PEEP SHOW] History of the Thames Tunnel [title on cover], [London: ?Alfred Boot, n.d.]. 4 (200 x 160mm.), 3 hand-coloured wood-engraved sections with cut-out archways within concertina pull-out, title with 3 peep-holes revealing panoramic views of tunnel and surface of the river with boats (slightly stained), contemporary cloth-backed marbled boards (lightly rubbed).