prints identification/authentication guide
 

I finished this a few months back, but not sure if I posted about it here. It's a pdf ebook guide to identifying and authenticating prints (ink and printing press, not photos)-- all forms: Pre-War cards, antiques signs, art prints, etc. Heavily illustrated in color.

pdf book

Cheers.

Thank you for sharing you knowledge.

+1

Wonderful material David. Thank you for posting.