California Powder Works was established in the Santa Cruz area of California in 1861 and is historically known as the first maker of explosives west of the Rockies, which supplied mines and railroads in California. In 1869 it moved its dynamite production to San Francisco in the area that is now Golden Gate Park. Famous for its Hercules powder.Dimensions: 28” x 23.75” framed. 19” x 14.5” sightThis lot may be picked up free of charge from our facilities in Sacramento, CA. Processing and shipping within the Continental US $140. 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. Not examined outside frame. Two small puncture areas lower left- They appear to be from where the original small calendar (along with its staples) was removed at some point in its history.