I love these 1920s McCall (no 's) pattern illustrations, with their brilliant colors, and their models with tiny little heads. Just look at this one - three dresses in different colors, all showing the dresses made with fabric that has a pattern. You don't see that kind of detail in a lot of the older patterns. And in these patterns, the illustration is actually glued to the front of the envelope. It's just plain cool, in my humble opinion.
And the styles in this one? It's what a stylish girl wore for the stock market crash of 1929. My only complaint is that I want to see the shoes!