Trying to search the catalogue for Unspecified Authorities. [Resolvido]

There are some coins in the catalogue attributed to “Unspecified Ruling Authority”

e.g.

How would I search the catalogue for these?

I have tried editing filters without any luck and the general search only seems to pick them up if the word “Unspecified” appears in the comments etc.

Many thanks

You type in missing and get ‘Unspecified’

Query

Under the ruling authority?

Yes the ruling authority filter. Type in ‘missing’ and hit enter.

Perfect!

Thank you.