Well Devadatta, you photos aren't all that good, but from what i can see these all seem like authentic keris with some degree of age. Your first example has a nice iras sheath (made all as one piece) which are less common and desirable.
Your last example may well have had the kinatah (gold) added more recently. This is sometimes done to make an old keris more desirable in the marketplace. It's hard for me to say one way or another, but i do find it an attractive keris either way and it has a nice old pendok (which might be a low grade silver, but is more likely some nickel based white metal).
I certainly would not label these as "tourist" keris. Does this person in your community fancy himself some kind of expert?
