We only offer mugs that pass Homer Laughlin China Company’s rigorous quality control program. Factory seconds of The 1917 Centennial Watch Mug™ are not offered for sale anywhere. If your mug appears defective, please email us via the “Contact” link. We’ll send you directions about how to return the mug for a free replacement. You might be interested to know that many of the historical sherds we found on Glass Beach at Guantanamo Bay included blemishes that today would make them factory seconds. These include pits in the glaze (caused by air bubbles), drooping glaze (known now as glaze sag), and idiosyncratic marks inside the mug made by the jigger, the tool that shaped the mug’s inside geometry. Circular marks in the inside bottom of the mug are a common byproduct of jiggering and are not considered defects.