Fashion on the Cusp

When people discuss the various eras of vintage fashion, we usually talk about the often drastic distinctions that define the typical 20s, 30s, 40s, 50s silhouettes and so on. The more I've immersed myself in vintage, though, the more I've found myself in love with the styles emerging in the years that fell sort of between decades, especially fashion of the very end of the late 20s and the early 30s.  One of the things I especially love about this little "tween" period in fashion history is the way the designs reflect a bewitching combination of both details associated with 20s style and elements many have come to see as central to 30s deco fashion aesthetics (a fact which confuses many people who find these dresses--I find they often get labeled as 1920s).  Since I've got a soft spot for both flapper and depression dame fashions, it is no surprise I love it when a frock is a fusion of both.  Although I plan on putting the little dress shown below into the shop soon, I wanted to post about it here (and try it oh hehe) today, as a sort of example of the kind of "cusp" fashion I adore.  The first thing about this frock (and others from this time period) that makes me swoon is the seaming.  Designers around this time seem to have enjoyed integrating awe-inspiring patterns into the seams joining bodice to skirt (usually around hip to upper thigh level). I don't *think* they are godets in the traditional sense (or are they? does anyone know what the term for this design element is?).  Another aspect of the dress below that I think well represents popular fashion of the 20s/30s cusp is its colour: I believe it was called "marron" or chestnut?  Given the number of frocks and knitwear from around 1929-33 or so I've come across in this colour, I would say this was a very au courant hue in its day...and it's one I think is so striking and rich. I'm not an expert here, but I'm just going by things I've seen and/or acquired.  I could go on and on here, but the last thing I will mention for now is the amazing collar of this dress, which consists of what look like autumn leaves and little nuts (maybe oak leaves and acorns?).  When anyone asks me why I love vintage fashion from 'tween the 20s and 30s, these are the sorts of details I point to--as well as the hats (but I'll save that topic for another day).  Now then, what is YOUR favourite vintage fashion era or style?