This one is an interesting piece of glass.  It has a modern, asymmetrical design with a square pedestal base.  The glass looks like it was done in layers.  The back is deep red and while the bottom is smooth, the top of the red portion of glass seems to be faceted or blotchy to allow light to catch the red at different angles and give different shades.  There is a clear glass layer on top of that with lots of white swirls of glass mixed in.  This is one of those pieces that can look very different depending on the lighting and angle that you catch it at as you can see in the pictures.  It would make a nice centerpiece being around 11-1/2" measured square and is 13-3/4" corner to corner.  I have not been able to make out any markings.

Thank you for taking a look!  Hopefully you'll check out my other items.  I'm a long term picker who has specialized in antiques and collectibles for over 20 years and look for something a little different, hence the name.  I've been a warehouse and restaurant manager so understand how to pack for success and give good customer service.  Feel free to look at my feedback page.  I do work full time, hence the three day shipping allowance, but I do try to get them out the next day when possible.  It also makes me sometimes slower than I'd like answering questions or putting on new items, but I will get back to you as soon as I can and try not to be lazy about getting listings on.  Thanks for looking and feel free to write me with any questions or new information about my items.  It sometimes gets difficult to exactly identify something and I appreciate feedback and comments from the eBay community!  Have a great day and happy hunting!