As I understand it, Registered Mail transfers TITLE...as it indicates there is VALUE in the envelope. Plus, it is SEALED by the Post Office. Either way, there will be evidence of Acceptance.
Printed copy · Anthology Volume 9, page 300Printed copy from The Tender For Law Anthology, Volume 9, page 300 (printed 13 June 2014). Added by this site; not part of the Facebook export.