The top section of this bridge now is identical to the Duesenberg Steel Saddle Bridge HWDDN. Underneath there is a brass base plate with a piezo pickup. The piezo sound can easily be added to the sound of the magnetic pickups using a pot or a switch. String spacing 52 mm, post spacing 73,5 mm. The piezo bridge HWDPN is ca. 1.5mm higher than the steel saddle bridge HWDDN! It has nickel finished.