You are bidding for 1 piece Fostex FS21RP midrange driver removed from Swiss made ARP RP series speakers. Speaker has ribbons slightly damaged at one place, but still work flawless. I replaced both as pair at my speakers and this one needs to be sold now.
Good overall condition except place mentioned above. Check actual photos for details. 

Note: Fluke multimeter is not a part of listing!

Private selling. Payment should be done within 3 days. Bid according with posted above. Happy bidding.