Abstract: A hollow metallic head having a ball striking front face and a bottom surface,(b) the head defining an opening between the hollow and the exterior, the opening located at the bottom of the head, the head having a heel and toe,(c) and a closure for that opening having elongated, tongue and groove, linear sliding connection with the head, the closure located at the bottom of the head, the closure directly exposed along its length to the head hollow above the closure,(d) the connection having a substantially T-shaped cross section, the closure being longitudinally elongated in the direction between the hell and toe, and the connection comprising two pairs of tongue and groove elements, each pair including a tongue element on the closure and a groove element on said head to limit inward displacement of the tongue elements, the closure having a lowermost outer surface everywhere spaced from the tongue and groove elements and flush with the head bottom surface at opposite sides of the closure lowermost outer surfac

Abstract: The method for transporting wax structure between first and second positions, and including (a) a support relatively movable into adjacency to said structure, (b) prong means associated with said support and movable relative thereto between retracted and advanced positions, the steps that include (i) advancing said prong means in non-parallel direction into said advanced position penetrating said wax structure, and (ii) displacing said support and prong means to transport said wax structure.