106. In general.

Special powers of appointment1, as regards their creation, are subject to the propositions previously stated as applicable to general powers of appointment with respect to the ascertainment during the perpetuity period of:

  1.  

    (1)     the donees who are to exercise them;

  2.  

    (2)     the time at which they are to be exercised; and

  3.  

    (3)     the time at which they are to take effect