20.00g (0.80oz). Both of the two approximately 18 meter high Colossi of Memnon are located in the Egyptian Nile valley close to the city of Luxor. They were made of sandstone in the 14th century B. And each weighs over 1000 tons. Partly embellished with color. Low mintage – limited to only 2,500 pieces. Comes with capsule and the certificate of authenticity (was released without box). We strive for excellent service. Though we normally reply to inquiries as soon as possible, please note that our office is limited on weekends and holidays. Track Page Views With. Auctiva’s FREE Counter. The item “Palau 2014 $5 World of Wonders X Colossi of Memnon Egypt 20g Silver Proof Coin” is in sale since Monday, March 09, 2015. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\South Pacific”. The seller is “jvpic” and is located in Berlin. This item can be shipped worldwide.