I built 2 Mason & Sullivan Grandfather clocks.
(see members.verizon.net/~vze4v38m I'm from Ma. and had visited their outlet on Cape Cod in the late 70's and also around 1990. Unfortunately, Mason & Sullivan sold and closed their doors around 1992. They had the best plans on clocks that I had ever seen. In the past few years, I received about 30 emails (from my web site) from people looking for info about Mason & Sullivan.
Its too bad that they closed their doors.