we did discuss this one before also, the department of interior doesn't have any hearses. rigs are rented from GSA. department of interior does not operate on the reservation that would be BIA or FBI. but things like shuffling bodies would be handled by the tribal government. they all have ambulances and funeral homes that operate in the 8 reservations in the state of SD. what your most likely looking at is a old surveyors wagon. the tray with the lip around it would hold the equipment necessary to do that. the only department of interior in the state is at Mount Rushmore, the Bad lands national monument, wind cave national park and Jewel Cave. the forest service oversees the black hills national forest, the Custer national forest, both the Ogalla national grasslands and the Pierre national grasslands. the coure of engineers the waters and dams on the river the Indian nation in the US is the only place people have to obey the law for 3 separate agencies and 3 separate courts. the state of SD the tribal of the reservation there are on at the moment and the federal System. all this car is is a old Rambler Wagon sold a GSA auction. now the auctioneer could have said it might have been used as a hearse. anything to get a bid