Commanding officers and supply officers of the organized militia, bonded for the care of United States and state property, shall be allowed fifty dollars a year as compensation for the care of such property, to be paid by the Adjutant General on or before the thirtieth day of June in each year, or as soon thereafter as possible, provided all United States and state property shall be found on hand and in satisfactory condition at the state inspection of that year and provided the value of such property not satisfactorily accounted for shall be deducted from the payment for its care.