If you have a particularly sprawling design-book library, or if you religiously follow things like Mondo Blogo or Herman Miller editorial director Sam Grawe's Instagram feed, you may be relatively familiar with the heaps of amazingly designed archival ephemera that original modern furniture brands tend to generate over the decades. But the rest of us still get giddy when we come upon a gem like Vitsoe's brand-new Tumblr, which the 53-year-old German stalwart launched last month to show off rarely seen bits and bobs pulled from its company files. Every couple of days, staffers dig up old invitations, promo items, photographs, and catalogs and post them alongside a snippet of information about their origins; with Dieter Rams as Vitsoe's lead designer and Wolfgang Schmidt behind its graphic identity, there's been no shortage of eye candy on the site so far. A few of our favorite examples are shown here, but we advise you to bookmark the site and visit it often — we have a feeling the Vitsoe folks are just getting started, and there's no telling what they might turn up once they really dig in.