Upon the service on the bankrupt by the trustee of a notice in writing under this section, any tenancy—
which is excluded by virtue of section 283(3A) from the bankrupt's estate, and
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.