Not so with the Butterick Pattern web site! There is actually a real live human on the other end. They even respond! I was surprised, to say the least.
At your suggestion, dear readers, I sent them a note about the error I found with B6417. This is their response:
Thank you for your email concerning Butterick Patterns. Whenever possible we try to provide our home sewers with the information they desire. You’re right, C & D do not have the shawl collar as A & B. This will be corrected. Thanks for alerting me.
McCall/Butterick/Vogue/Kwik Sew Patterns
McCall Pattern Company, Inc.