It is not the Base but the Injection Machine that requires everything to line up correctly. If the holes do not line up correctly it can not be used in said machine. Just as heads from one engine can not be just bolted on another engine. If these molds were designed to be ran into a Harry 1902 model they may or may not work on a Casey 1995 model . As with everything else the newer machines are designed to be faster and lighter.
I had to wait a week for mine to ship. I was hopping it would show up before the family dinner. I had ordered a couple kits for the Nieces and Nephews along with my 2 bobble heads. A skeleton and Spider Man figures.
Being number 8 of the 12 the children they had it all blends together for Dad. Mom passed so I can not ask he. She could have told me. Never thought to ask. My brother told me we had a 55 or 56 Pontiac red over black back then.