Identifying Magic Items
Outside of experimentation, lucky discovery, or other method, a Wizard or Elf may spend a week in research (concurrent with delving, if returning to town nightly), spending 1d4 x 10 GP in materials, communications, favors, etc. At the end of the time, make a base DC 15 check vs. level + Int modifier. Success reveals some useful information. You can try again if you fail.