THE WHEEL OF TEMPUS Q. FUGIT
The antique handcrank attached to the six-spoke wheel at the bottom of the piece is connected to the propeller at the top; when the crank is turned, the prop spins. The fellow holding the scythe is Soren K. von Dodovogel - a dodo bird - in his role as the Grim Reaper; also notice that Master Toadrick has three hands.
The narrative reads: "Come now, Master Toadrick. No sense crying amid the ruins of Life, claiming it with such woeful breath, though yours could have had no such dignity as the sweet call of Death. You have clung to Life as a child to its mother, now leave your dockets for the play; you have cheated Death with snake-oil, paid your sinner's tithe with haste. Belay all exculpation and prepare to meet thine end, then remember this to your epitaph: far better that I should have lived as if every day were my last."