Scope and Contents From the Collection: The San Francisco Blueprints Collection contains blueprints for buildings from the early part of the 20th century in San Francisco. For the most part, the blueprints are not complete sets of drawings, but consist of just a few sheets of drawings per project. Some projects may have floor plans, sections, elevations, structural plans, or mechanical plans, but the contents are not consistent. A few projects only contain one sheet of drawings. Many of the blueprints are in poor condition, with...