1877 San Franciso Mechanics Institute bronze medal. Hallmarked “A. Demarest. SC., New York.” Dimensions: 3” Diameter Processing and shipping within the Continental US $30. 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. Dings and small divots around the edge of the coin. There are also the remnants of the letter “N” and the letter “D” on the edge of the coin, where it may have been mis-struck when attempting to engrave it with lettering for the recipient.