I've created a section of the photo gallery just for signs, graphics and posters that you can use on your model railroad. I've started it with the vast collection of signs that "Tomkat" uploaded, and I encourage folks to add their own. Please choose signs that could be printed and the used on structures for this category. Otherwise, use whichever of the normal topics fit best.
http://www.modelrailroadforums.com/...igns-and-graphics-for-your-model-railroad.49/
http://www.modelrailroadforums.com/...igns-and-graphics-for-your-model-railroad.49/