I've found a great source for vintage sewing patterns—Out of the Ashes Collectibles! Sheila Savell, who started out selling on eBay six years ago, now has an online home for her collection of 6500+ (wow!) patterns.
All are original out-of-print or discontinued patterns from the 1930s to present day—some old, some new (including old store stock). There are also pattern books for sewing, knitting, and crochet. All of which could be a little overwhelming to look through but she's set up several ways to search for exactly what you want. Sheila lists items every day so you never know what you'll find.
And she's very generously offered a 10% discount to my readers. Just enter code PRIMROSE when you check out and the discount will be applied. I ordered a very cool 1970s needlepoint pattern and a child's apron pattern a few days—can't wait to see them in person!
Sorry for the delay with my Bouckville trip post. It's been rainy and cold here for days and too dark to get good photos. I really need to find a better method for taking pictures because this happens all through the winter, too.