This is a fairly basic Vienna regulator. It has an 8 day time and strike pendulum movement, circa 1890's.
Closer view of the porcelain face.
Here the door is open to see the face and pendulum. The clock has a popular "R-A" pendulum. That only means that it is a retard (R) and advance (A). If you turn the rating nut on the bottom of the pendulum to the "R" direction you will slow down the rate the clock keeps time and the "A" will advance the rate the clock keeps time.
Side view of the clock.