It seems to depend on where you are in the UK as to the design of the certifcate and box.
Google "UK Commemorative Marriage Certificate" then click on 'Images' and you will come up with many choices.
Nicola Sturgeon’s husband Peter Murrell re-arrested over SNP finances.
Should women have equal pay and opportunities?
To think that London, or anywhere else for that matter, does not belong to any one demographic