Emblems are a group of items added by Railcraft. They are solely used for decorative purposes. Emblems can be used on Steam Locomotives, as well as making decorative Metal Posts with an image on them. Emblems are created in the Engraving Bench by giving it power and Steel Ingots.
There is a pre-determined set of Emblems that can be created, but more can be unlocked by using the Unlock Emblems button in the GUI. This feature requires an internet connection. Unlock codes can be found on CovertJaguar's Twitter, CovertJaguar's YouTube Channel, as well as the Railcraft Blog.