Nice USGS sheet from 1954 providing us a good look at Sebastopol Ca in 1954. Topographic in nature , with color changes indicating changes in height and vegetation . The best information for the time of all houses, roads, waterways and topograhic features for all regions of all states , but for us , we focus on California with varieties noted. This map has a lot of agricultural and urban detail , regarding land use and existing structures for the time, good condition on this 20 x 25" map