A Eureka Powder Works "Mathewson's FFFFF Gun Powder" 1lb tin. Eureka Powder Works was opened 1852 by George Mathewson in New Durham, New Hampshire. A large explosion in 1860 ignited the drying mill and rapidly spread to 7 buildings on the property, destroying all but one, killing 6 men, and burning many other workers. It officially closed in 1874. Dimensions: 7H x 3.75W x 1.25D inches This lot may be picked up free of charge from our facilities in Sacramento, CA. Processing and shipping within the Continental US $30.00. All FedEx packages are sent with Direct Signature Required and insured at full replacement value for a fee of 1.5% of the purchase price, unless buyer accepts complete liability in writing. Discounts given on combined lot shipping. Great. Some wear visible across, however in overall good condition and the label is legible. Please see photos.