Way back in 2013, when I was trying to sift evidence for dating Chinese cloisonne beads, I wrote a blog post about what I subsequently learned was a morning glory motif in a champleve clasp.
The Morning Glory Clasp
A recent eBay purchase turned out to be a rare example of a cloisonne necklace of 15mm beads that could most probably be dated right down to the month and year of purchase.