This picture sleeve features a nice color photo of the prototype 1963 bound sidejack Mosrite Ventures Model (held by Nokie). Note that the vibromute bridge is just a sanded down guild bridge without the Mosrite logo that would appear on later vibromute bridges. Also note that the neck pick-up is not aligned with the slant cut at the base of the neck. Don is also holding an early sidejack model but the body does not appear to be bound.