These were by a known grey market seller out of Hong Kong. I happen to think they’re awesome, and will buy them even if I hate the outfit they come with, but your mileage may vary. I will not be giving the name of the seller out.
What makes me think these are for Caroline and not for the MyAGs or another historical? These boots are period 1810s, and the ones in the middle look very familiar:
Source for period boots: http://janeaustensworld.wordpress.com/2011/03/09/regency-fashion-ladies-half-boots/
Paulina's Blog 
Wow! This is so cool, Lena!
Why won’t you give the name of the seller?
Its a privacy thing.
Privacy for a public eBay seller? I don’t get it.