I'm going to call this spool a U-98B variant in white. Nice example of an old crude porcelain piece. The measurements are 2-3/4 inch X 3-9/16 inch. The book isn't clear with this spool. Would be a great addition to a porcelain and/or spool collector. The picture shows the damage so only asking $30 plus actual postage. See Pic #2 for the end views. PayPal works for me..