This is a special one off 1965 Polaris Sno-Traveler.. This sled has an experimental gas tank under the hood that the engineers at Polaris were trying in 1965.... its the only sled know to have that gas tank ( not used) the rear gas tank was found to work better.... this sled is a beauty, everything works perfect, runs strong and fun to ride...Sled was restored correctly years ago.... a real treat to ride.