The reason I think it's old is the design. It's on the outside of the globe, almost an imprinting as you can feel the actual pattern. The core is oxblood which is only visible by illumination. I've had this marble?for a long time, at least 35yrs. I assumed it predated the German handmades. I thought it could be a part of some sort of lamp or candlestick. Another thing is the weight , it's extremely heavy for a marble that size. It's also not perfectly round. I'm open to any ideas. Thanks