The damper (round part that fits inside the stove pipe). The bent shaft with the coiled wire handle that holds the damper itself has disappeared over the years, but the Griswold logo and size (6") are quite legible. We always used the shaft or a 20d nail to poke the holes in the pipe. I didn't have any clue that there was a specific tool to install the damper. Prior to assembling the pipe, damper, and handle, my father would use a smaller nail to punch holes in the pipe and thread wire through them and twist the ends together, to keep the pipe from separating while in use. I used this method myself, until I discovered self-tapping metal-stud framing screws. That speeded up the process. I would be interested in seeing an installer.
After the crack in the cast-iron heater became large enough to become dangerous, Daddy converted a 55 gallon drum to a heater, and my after school chore of keeping fire wood stocked in the house became real work. That drum would eat up twice the wood that the CI heater would. Good thing that Daddy cut logs for a living, no scarcity of good hardwood.
