This is my HO scale walthers F40 number 2105. I got this model in 1998 and it has long since been discontinued. I have seen them from time to time on certain websites but they are VERY rare and hard to find. I have since added some more details to this model to make it more realistic, such as a brass K5LA, roof top air conditioner, a front coupler, and more. I have also changed the horn sound. Enjoy! This model can also be seen in a video by user locomotive450.