391. Tenancies.

On the service on the bankrupt by the trustee of a notice in writing1, any tenancy:

  1.  

    (1)     which is excluded2 from the bankrupt's estate; and

  2.  

    (2)     to which the notice relates,

vests in the trustee as part of the bankrupt's estate, and, except against a purchaser in good faith, for value and without notice of the bankruptcy, the trustee's title to that tenancy has relation back to the commencement of the bankruptcy