Ivory Kroop Razors Rare?

Hi at the moment I own a set of 7 day "KROPP Straight razors with REAL IVORY Scales I have been informed by a big collector of straight razors who has looked though early kropp catalouges said that KROOP has never made a set of Razors with Ivory Scales and if the scales are real Ivory and not plastic or Bakelite which has been tested to prove they are not plastic or Bakelite so they are real ivory. So that the set that i own would be very rare indeed. Is he correct in that

I did see your 7 day set in the Cream of the Kropp razor club, its beautiful. Just recently there was a 7 day set on Ebay uk with ivory scales, link:
http://www.ebay.co.uk/itm/Antique-Vi...p2047675.l2557
Also this Kropp advertisement for 7 day set with ivory handles.
Attachment 134601

SOOOOOOOOOOOO,can we see the set??