The Sanborn overlays: Olympia in 1924 and 1947
This page includes overlay series for both 1924 and 1947. For the 1947 series, Sanborn re-used the 1924 maps and updated them by simply pasting any changes over the original maps. Some anomalies or errors exist: for example, the 1947 sheet for Capitol Campus fails to show the existence of the new diagonal streets, although…