I have a Handcrafted Authentic Mother of Pearl Clock. The clock inserted is "Movements by Lanshire". This is a table clock. Electric. It is encased with many mother of pearl shells of all shapes,sizes and color. White, and browns. It weighs aproximately 10 lbs. It's 12 inches in hight and 8 inches wide. It's shape is somewhat like of a mantal clock except that it is taller and not as wide with a shape of it's own. I'm not sure how old but can narrow it down to about 70 years. Could be older but i don't know if the lady who owned it had it passed down to her or not. There are no markings or signatures or dates. Except that it says Handcrafted, Authentic Mother of Pearl. Thankyou. Linda