The claim or notice of intention shall be filed in the Office of the Governor and a copy shall be served upon the Attorney General and a written receipt therefor shall be issued with the date of filing indicated thereon. The claim shall state the time when and the place where such claim arose, the nature of same, and items of damage or injuries claimed to have been sustained and the total sum claimed. The notice of intention to file a claim shall set forth the same matters except that the items of damage or injuries and the sum claimed need not be stated. The claim and notice of intention to file a claim shall be verified.