Hello, everybody. New to the forum. I would greatly appreciate any confirmation as to the identity of these pearls I acquired for my loving and devoted wife, Carol. She loves these pearls more than her traditional Mikimoto set. We are always fascinated by the beauty of these pearls, which I acquired for a little of nothing (400.00 US). I believe these are Mikimoto Silver Grey Tahitians circa 1960's. The Clasp is 10K white gold with the "M" Hallmark. Studying the Company's history, I also believe that this clasp was one that was utilized for that time period. The Pearls are approximately 8-9mm each. Apparently, from the writing inside the case, it seems that they were purchased at the Lane Crawford's in Hong Kong. If anybody has an idea as to their value, that information would be very appreciated as well. Thanks to all and we do sincerely appreciate your time and assistance. Cheers.