Property:Signed on date
This is a property of type Date. It represents the date on which a manuscript document, such as a letter or warrant, was signed. It should only be used if an original signature is present on that particular copy. For later copies that do not have the original signature, this should be left blank. If a later copy has a signed certificate of authenticity written on the same paper, the certificate should be represented as a separate child text. If the original of the copy does not survive, you can create a Lost manuscript text and enter the date signed there.
See Help:Dates for more information on how to enter dates.