Sesquicentennial Cyclone Coaster Descriptions: This is a great medium-sized coaster designed and built by Harry Traver for the Philadelphia Exposition of 1926. An excitingly twisted track complete with whirlpool helix. This Cyclone Coaster is a visual beauty and one of my personal favorites. RCT/LL & RCT2 tracks included. Last Updated: 03-Oct-2004