The Brick-brick mutilation is based on a repetitive masonry pattern on the side of a 1x4 brick. The 1x4's can either be staggered (crossing lines when stacked) or vertically stacked. If staggered then a 1x2 is needed as well for the ends. Also if (...) (22 years ago, 13-Dec-02, to lugnet.trains, lugnet.build.arch)