Two framed lithographs by Martin Tang, depicting scenes of San Francisco, California. Martin Tang is known for his lithographs, often featuring cityscapes. The lithographs show iconic San Francisco scenes, including a winding street (likely Lombard Street) and a cable car with a view of the bay and Alcatraz Island. Lithography is a printing process that uses a flat surface, traditionally a stone or metal plate, to create images. Both lithographs are presented in matching wooden frames with a reddish matting, suggesting they are a set. One backing cover needs attention, there is currently a cardboard in it.