You don't see these everyday is this very impressive large size U-928A incused marked:; Boch Patent / March 8th 1898 / Thomas & Sons Co. Three piece weld glaze. This large boch displays well yet does have minor rub chips above the wire groove as shown in Pic #2. Asking $200 This is a heavy insulators (10 pound package) so I will split the shipping cost with you. PayPal please.