David,
If you sent the knives to anyone in California, and it can be established that they received it and have made no attempt to return it, then, as Ira said, it is theft. If the value of the knives is over $400, then the crime is "grand theft".
California Penal Code section 485 reads:
"One who finds lost property under circumstances which give him
knowledge of or means of inquiry as to the true owner, and who
appropriates such property to his own use, or to the use of another
person not entitled thereto, without first making reasonable and just
efforts to find the owner and to restore the property to him, is
guilty of theft."
Hope the info can be of use to you, and good luck!
Hey Clint97, nice avitar!
Frank
