Many thanks All for your replies.
After receiving the Marriage Certificate completed by the Registrar at the time (1880) I contacted the Lancashire Archives, who told me that the original Registers were held at Manchester Central Library. I’ve had numerous emails and phone calls with the Help desk at the Library and they kindly looked through the microfiche registers for me. Sadly, it would appear that they only have the copy certificate that I already have; which has no original signatures on it.
This is very confusing and disappointing, because I thought that signatures were required by law?
Marriage certificates in England in 1880 required the signatures or marks of both the bride and groom, along with those of at least two witnesses, on a marriage schedule that was then used to create the certificate
These signatures were a legal requirement established by the Clandestine Marriages Act of 1753, which mandated that parties to a marriage and at least two witnesses sign the register’.
Romilly.