1106. Other liable persons.

Every person who:

  1.  

    (1)     is liable under a specified provision1 for inheritance tax on the value transferred by a potentially exempt transfer2 which proves to be a chargeable transfer3, or would be so liable if tax were chargeable on that value4;

  2.  

    (2)     is liable under another specified provision5 for tax on the value transferred by a chargeable transfer made on death6, so far as the tax is attributable to the value of property which, apart from the reservation of benefit provisions7, would not form part of the deceased's estate, or would be so liable if tax were chargeable on