Hello, I have had very little luck seaching the net for information on ore transfer trestles, so I thought I would inquiry here. From what I can gather, transfer trestles allowed narrow gauge cars to to pushed up to the top of the trestle where they could dump their load to standard gauge gondolas below. I am thinking about building such a trestle, but cannot find any pictures. I have found one reference to an article in Railroad Model Craftsman (Feb 2000), but I have been unable to locate the article at my local hobby shops. If anyone could help I would certainly appreciate it. Thanks.