This listing is for an old German handmade marble, 13/16", and in excellent condition. I believe this style is called Divided Ribbon Core swirl. The core seems to be 4 ribbons, separated, and wavy. The colors are yellow, red, blue, and white. Near the exterior of the marble, are fine strands of white and red. The surface is original, and the pontils are faceted(I think). There are a few minor as made defects, but no real damage. Look over my photos, and ask any questions you may have. ...Shipping to the lower 48 states will cost $3.50, for First Class mail. Check my other listings for more items of interest. I will gladly combine shipping for multiple purchases.