Απόσπασμα: "Steve27"When I went to Krause, I found two varieties, KM399 and KM400, neither of which have pictures. I then checked Numista, and the information here appears to be wrong. First the image for KM399 is for a coin which doesn't exist as far as I can tell. It's blue on both the obverse and reverse; while my coin is gold on the obverse and blue on the reverse. Second, the composition appears to be wrong, it says "Bimetallic: gold center in titanium ring." If you go to the listing for KM400, it shows a similar coin with silver ring around a gold obverse and blue reverse, which I believe to be colored titanium.
My edition of Krause has pictures:
I have a whole set of 13 Titanium coins:
Unfortunately, there were only 12 Certificates of Authenticity and just the one with your coin is missing:
But all 12 COA's say the titanium coin is 10.00 g.:
So we can assume your coin is also 10.00 g. but that's not correct. I've weight a few, yours is 11.56 g., another one weighs 11.71 g. It's a pity we can't rely on the information given on COA's. By the way, the Pobjoy website also give 10.00 g. for each Titanium coin:
https://www.pobjoy.com/british-virgin-islands-olympic-rings-titanium-bundle
All issues of the set were minted in solid titanium (990/1000) and the color was completed by an elaborate surface refinement (anodizing). As you can see on your coin (and on mine in the set), the coin is not as blue and gold coloured as on the Numismaster website. These coins are certainly not bimetallic.
The 75 $ coins are bimetallic, gold and titanium (not all the coins have a 75 $ version), and the 5 Olympic coins also have a 5 $ bimetallic version, silver and titanium. It's a pity the COA of the Hans Christian Andersen coin was missing in my set, it would have showed that 5 $ bimetallic silver and titanium coin too I guess.
Απόσπασμα: "Steve27"I also believe the KM numbers are backwards, KM399 is the one with the silver ring.
I don't believe the KM numbers are backwards, Krause (and Numista!) just messed up/mixed up some of the data. KM# 399 is the normal titanium coin, KM# 400 is the one with the silver ring but mintages are exchanged in Krause and weight for KM# 399 is wrong. Composition is in both cases wrong, the KM# 399 is not a bimetallic, just titanium and the KM# 400 is not a tri-metallic silver, gold and titanium, just a bimetallic titanium center with silver ring. The "gold" is just the anodized obverse colour.