Looks like of Italian make -- are they better than the CheapoChinese ones? Adattatore Micro adapter items - Get great deals on Cameras Photo items on eBay.com!
"Adattatore" is just the Italian word for "adapter". There is an Italian firm selling all sorts of adapters (Adriano Lolli is the firm name), but I have no experience about their quality and origin (if they are made by them or imported).
