Zunie family Conestoga Wagon belt buckle, wheels turn

What has become a classic native-made Zuni buckle, a Conestoga Wagon, set with shell, jet, turquoise & coral made by the Zunie family silversmiths.  Great detail and stone use with alternating turquoise and jet on the bed of the wagon and I love the plant on the lower left with turquoise and coral leaves.  Signed in script on the back by Allyn & Verna Zunie.  A fun piece!  The buckle measures 2 1/2″ x 3″ and would take a 1 1/2″ to 1 5/8″ belt.  In excellent old condition.