False 1623-2002-X15 1623 2d -0 2002-X15 1623-2002-X15 Entrance noted CUCC 2002 Dunks "Big, blind tunnel" it says here - presumably that's a tick then? Sketches and brief descriptions in 2002#31 smkridge/2002-X15.html smkridge/2002-X15.html