Please suggest a book on modern silver marks.

[rustyspoon]

Hi Folks.
This forum is an excellent resource for silver, but I was wondering if someone can suggest a good silver hallmark book for contemporary manufacturers.
About from 1920s up to now (or close to now). I have a good set of silver books on Native American, Mexican and Russian hallmarks. I was thinking of Europe / Americas (excluding Mexico, as I already have that covered).

I know there is Miller's Encyclopedia of World Silver which I think is a good set, but was hoping to find something narrowed down to past 100 years.
Please let me know. Thank you in advance!