Rolex Country Code 211

[aniconic]

I've been looking for a 5-digit YG DD for a while. Today, I ran across several exemplars that all had a country code of 211. None of the usual country code lists (including one in these forums) list 211. 208 is Greece, 212 is Italy, and there's no 209 or 210.

I found a post elsewhere where a person said their Rolex from a well-known UK jewelers had a country code of 211, but there was no photo or other evidence.

I'm not interested in any of these exemplars (all were from the 1990s) for other reasons, but I became curious.

Does anyone here know about this country code?