UBB.threads Forums Uniform & Accessories The Honor Ring Forum Strange case of the dug postwar, wartime rings

Not sure I understood what you mean by perch here.
In sand casting you just press model in sand and pour directly liquid metal in sand. It is relatively fast process. Very thick and high sprues on pics says it was sand casting.
With wax and invest cast it is not anymore sand casting, it is already lost wax casting, where you get much, much better results than in sand casting.