Joseph H. Adams, Harper's Outdoor Book for Boys
“ The smoke-pipe at the top of the barrel is cut from an old stove-pipe and is shaped as shown in Fig. 1. With a tin-shears or snips the ears are cut at top and bottom. Those at the top are pointed and give a crown effect, but if the plain-rim top is preferred do not cut the pipe. At the bottom, slits are cut in the pipe two inches in from the edge, about three-quarters of an inch apart, and with a flat-nosed pliers the ears are bent out so that they will lie flat on the barrel-top when the smoke-pipe is set in place. ”
