New literature type: auction catalogue

what about creating Auction catalogue as a new literature type?

https://en.numista.com/L228785

https://en.numista.com/L229027

https://en.numista.com/L228744

That sounds reasonable to me. I think it would also be useful to have “Series of auction catalogs”.

On drawback I see is the row of types is starting to get long. Maybe the interface will need to be changed to support an increased number of types. (And possibly move to a way to select multiple types as with the main catalog.)

I found this really interesting website

https://www.rnumis.com/frontpage.php

A good idea.

I have hundreds of auction catalogues. They can be  a very good research resource.