The "Sarnia" was featured in the 1913, 1918 and 1928 Pequegnat catalogues. The clock is 16 1/2 inches high, 12 1/2 inches wide and 7 1/4 inches deep. It has an 8 day time and strike movement on vertically suspended tuned rods. That being an optional ($1.00) upgrade from the more usual gong. The case is walnut with a nice domed glass in the bezel.
It's a nice clock that's still not too hard to find.