Hi simatua. I think that if you see the keris from beauty perspective, you would not care even if it is not originally from places as said. If you see from yoni perspective, you would not care if the keris is either 1 year old or 1000 years old. Just remember that what people say as kadutan, or pusaka, or pertimi, is not because the keris has those properties, but because people see it as such. For example, I'd love to say a pusaka as a historical pertimi or historicable pertimi. But somebody else can say his keris, pusaka, because the kadutan has saved his life (CE:from getting biten by his neighbor's dog), and I could not blame him for saying his keris so. Because he is 100% right. So Be Careful.
