Question: Comet is a wooden roller coaster at Hersheypark built by a company that was established in what year?
Context: Tonnerre de Zeus is a roller coaster at Parc Astérix in Plailly, France.  Opened in 1997 and built by Custom Coasters International, it is as of today the 2nd longest wooden coaster in Europe, after Colossos, with a track length of 1230m (4044 feet).  This coaster is also the second wooden roller coaster built in France after Walygator Parc's "Anaconda", and the second massive roller coaster of the park after "Goudurix", which was built since the park's opening in 1989.  These two roller coasters were followed by "la Trace du Hourra" in 2001, and "OzIris" in 2012.  No other wooden roller coaster was built in the hexagon until Walibi Rhône-Alpes' "Timber" in 2016. The Wooden Roller Coaster (formerly Coaster) is a wooden roller coaster at Playland in Vancouver, British Columbia, Canada.  Opened in 1958, it is the oldest roller coaster in Canada.  The ride is 2840 ft long—which established it as the largest roller coaster in Canada at the time it was completed—and has a height of 68 ft and speeds of up to 76 km/h .  The coaster was awarded the Coaster Classic and Roller Coaster Landmark statuses by American Coaster Enthusiasts. Hoosier Hurricane is a wooden roller coaster at Indiana Beach in Monticello, Indiana.  The ride was designed by Dennis McNulty and Larry Bill of Custom Coasters International.  It opened on May 27, 1994, as the park's largest wooden roller coaster and the first wooden roller coaster built in Indiana in fifty years.  The ride was Custom Coasters International's third roller coaster designed and the first modern wooden coaster built with a steel support structure, which would eventually become a trend on many wooden coasters designed by them. The Wild Cat (initially The Joy Ride) was a wooden roller coaster located at Hersheypark in Hershey, Pennsylvania, United States.  The roller coaster was constructed in 1923 by the Philadelphia Toboggan Company (PTC).  Under an agreement between Hersheypark and PTC, Hersheypark leased the land the coaster occupied, while PTC owned and operated the coaster.  The agreement was for 15 years, at which point they had the option to extend the contract.  The contract was ultimately extended to 1945.  The roller coaster operated from June 16, 1923, through September 1945.  PTC and Hershey Park elected to close The Wild Cat and construct a new roller coaster in 1946. Kings Island is a 364 acre theme park located in Mason, Ohio, 24 mi northeast of Cincinnati.  Since the opening of the amusement park in 1972, at least one attraction has been added every year except 1978, 1980, 1983, and 2008.  The park is known to have attractions such as Flight of Fear which was the world's first linear induction motor launched roller coaster, and The Beast which has held the record for the world's longest wooden roller coaster since its opening in 1979.  Also, The Beast continues to be ranked as one of the best wooden roller coasters in the world by industry polls.  Kings Island's newest attraction is Mystic Timbers, a wooden roller coaster manufactured by Great Coasters International.  With this addition, Kings Island claimed the record for most wooden roller coaster track of any amusement park in the world, and tied the record for most wooden roller coasters, with five. A wooden roller coaster is most often classified as a roller coaster with running rails made of flattened steel strips mounted on laminated wooden track.  Occasionally, the support structure may be made out of a steel lattice or truss, but the ride remains classified as a wooden roller coaster due to the track design.  Because of the limits of wood, wooden roller coasters, in general, do not have inversions (when the coaster goes upside down), steep drops, or extremely banked turns (overbanked turns).  However, there are exceptions; the defunct Son of Beast at Kings Island had a 214 ft drop and originally had a 90 ft loop until the end of the 2006 season, although the loop had steel supports.  Other special cases are Hades 360 at Mount Olympus Water and Theme Park in Wisconsin Dells, Wisconsin.  The coaster features a double-track tunnel, a corkscrew, and a 90-degree banked turn.  There is also The Voyage at Holiday World (an example of a wooden roller coaster with a steel structure for supports) featuring three separate 90-degree banked turns.  Ravine Flyer II at Waldameer Park has a 90-degree banked turn, T Express at Everland in South Korea with a 77-degree drop, and Outlaw Run at Silver Dollar City which has 3 inversions and 120-degree overbanked turn. Outlaw Run is a wooden roller coaster located at the Silver Dollar City amusement park in Branson, Missouri.  The ride was the first wooden roller coaster manufactured by Rocky Mountain Construction and the first wooden roller coaster with multiple inversions, in which riders are turned upside-down and then back upright.  The 2937 ft ride features three inversions and a top speed of 68 mph , making "Outlaw Run" the sixth-fastest wooden roller coaster in the world.  The 162 ft first drop of the ride is the fourth steepest in the world among wooden roller coasters, at 81° beyond horizontal. Philadelphia Toboggan Coasters, commonly referred to as PTC, is one of the oldest existing roller coaster manufacturing companies in the world.  Based in Hatfield, Pennsylvania, it was established in 1904 by Henry Auchey and Chester Albright under the name Philadelphia Toboggan Company.  The company manufactured carousels, wooden roller coasters, toboggans (roller coaster cars) and later, roller coaster trains. White Cyclone (ホワイトサイクロン , Howaito Saikuron ) is a wooden roller coaster at Nagashima Spa Land in Mie Prefecture, Japan.  At 1700 m in length, White Cyclone is the third longest wooden roller coaster in the world, and is the longest wooden roller coaster outside of the United States.  Despite its length, White Cyclone is still considerably shorter than the 2479 m Steel Dragon 2000, the world's longest steel roller coaster, which is also at Nagashima Spa Land.  In addition to being the third longest wooden roller coaster, White Cyclone is the seventh tallest wooden roller coaster in the world and the fourth tallest wooden roller coaster outside the United States.  A single ride on the White Cyclone costs ¥1,000 (approximately $9 USD), and the ride is restricted to those individuals above 1.3 m in height; and those individuals under 54 years of age. Comet is a wooden roller coaster at Hersheypark in Hershey, Pennsylvania.  It is located in the Hollow section of Hersheypark, next to Skyrush.  Built in 1946 by the Philadelphia Toboggan Coasters (PTC) of Philadelphia, Pennsylvania, the coaster features a double out and back track layout.  When built it was jointly owned by Hershey Park and PTC.
Answer: 1904