The file 'N-Scale Concrete Culvert Underpass 3D Printer Model' is (stl) file type, size is 287.8KB.
Saw a picture of this on an eBay listing so I made one.
Three versions, full, half and wider half.
N-Scale_Concrete_Culvert_Underpass.stl | 192.0KB | |
N-Scale_Concrete_Culvert_Underpass_1.stl | 192.7KB | |
N-Scale_Concrete_Culvert_Underpass_2.stl | 366.7KB |