On Thu, Mar 20, 2014 at 12:53 AM, Andy Mabbett <andy@pigsonthewing.org.uk> wrote:

P.S. I have just proposed an "accession number" property for Wikidata,
which may also be of interest:

https://www.wikidata.org/wiki/Wikidata:Property_proposal/Unsorted#Accession_number

I don't think it is necessary, we alredy have "catalog code":
https://www.wikidata.org/wiki/Property:P528

Cheers,

Micru