Here's a cool website I kept meaning to post here but forgot to until just now:http://www.larsdatter.com/sitemap.htm
It's a treasure trove of period examples for all sorts of items. For instance, let's say I'm looking for photos of period prie-dieux so that I can design the one in Duncan's study. (You know, the piece of furniture containing the hidden studs that reveal the Transfer Portal niche?) So I could go to this webpage, scroll down to the section header "Furniture & domestic material culture," click on "Prie-dieux," and that would lead me to this listing:http://www.larsdatter.com/prie-dieux.htm
The listing will show me links to various photographs, the source for each item, and the century it's from. That way I can browse through and find something in an appropriate style (or at least one that I think looks really cool), and use that image as an inspiration photo for my miniature version. (Or as an visual reference that I can translate into a written description in a story.)
And there are LOTS of categories to choose from, not just medieval furniture!