Being new to SR's I have been browsing Ebay like a mad man and have come across what I think is a truly rare razor. A NOS Filarmonica with all original packaging.
Enjoy!
link
STRAIGHT RAZOR FILARMONICA BARBAS DURAS 14GREEN BOX NOS - eBay (item 160396648209 end time Jan-26-10 09:31:09 PST)
Seller also has others.