The notice hereinbefore provided for shall contain an itemized statement setting forth the work and material furnished for the repair, alteration, or improvement of the said personal property, and shall be verified by oath of the claimant; and if said claim is not paid within said thirty days then the said claimant may sell the said property at public sale by giving ten days' notice thereof in the same manner as personal property is sold by sheriff or constable.
6 P.S. § 12