The following deductions are allowed from the gross estate in arriving at the taxable estate (see Q 821):
(1) (a) funeral expenses, (b) administration expenses, (c) claims against the estate, and (d) unpaid mortgages on or other indebtedness against property included at its full value in the gross estate (see Q 848);
(2) casualty and theft losses incurred during settlement of the estate and not compensated for by insurance or otherwise (see Q 850);
(3) the charitable bequests deduction (see Q 851);