Welcome skeeter. Just so you know, it is against forum policy to give monetary appraisals, so i am glad this is not of great importance to you or your friend.
These do indeed appear to be authentic old keris, i would say at least 19th century, the first one from Jawa and the other a Bugis keris from Sulawesi. I seriously doubt they were "dug" as it is the tradition to pass keris on, not bury them with the dead. The sheaths leave something to be desired, but the blades and hilts are solid collectable pieces. Not upper class, but not junk either. The hilt on the Jawa keris is oriented in the wrong direction and shoulod be turned 180 degrees around. I like the pendokok (the metal piece between hilt and blade) on the Bugis keris.
Keris are not made with the same process as Damascus steel, though the effect can be somewhat similar to non-collecting.
I hope that helps a bit. I am sure others will also share opinions.
