In the last few days, I've had several new Wikidata properties created, for UK-specific identifiers. Please help to add these properties to items you look after on Wikidata, and encourage partner organisations to make use of them.
UK National Archives ID - https://www.wikidata.org/wiki/Property:P3029
Imperial War Museum war memorial ID - https://www.wikidata.org/wiki/Property:P3038
Scottish FA player ID - https://www.wikidata.org/wiki/Property:P3049
Charity Commission (England & Wales) no. - https://www.wikidata.org/wiki/Property:P3057
Of global significance, but issued by the Natural History Museum, London:
LepIndex ID (Lepidoptera taxa) - https://www.wikidata.org/wiki/Property:P3064
ButMoth ID (Lepidoptera genera) - https://www.wikidata.org/wiki/Property:P3060
Recent creations proposed by others have included::
National Library of Wales Archives & Manuscripts ID - https://www.wikidata.org/wiki/Property:P2966
Legacies of British Slave-ownership person ID - https://www.wikidata.org/wiki/Property:P3023