Antique Queen & Co. It’s just under 1 lb. And it’s about 4-1/2 inches tall by almost 3 inches wide, and about 2-1/4 inch thick. There is a tiny screw in the back that adjusts the front and the front can be turned (it’s on a revolving wheel). Goes from sea level to 15,000 feet. I don’t believe it’s working. Makes a nice showpiece nonetheless (for a desk especially).