1854 Lettersheet "San Francisco 1854" w/ manuscript additions

12 x 18" original lettersheet with manuscript additions indicating locations of important sites or buildings in the real time of 1854. A lithograph from Britton and Rey on Montgomery and Commercial Streets, across from the US Mint, this locally produced and sold image would have been sent via mail to family and business associates to show the city . Lettersheets are inherently rare and this one has been conserved professionally to assure a long life by rice paper backing applied. Very good to fine condition despite some visual blemishes.One of a few known copies