Riverhead Investment Co. cartographic Aerial views. lcgft Maps. lcgft [New York : Riverhead Investment Co., 1890?] eng Aerial view of the established county seat and of a newly developed suburban residential subdivision (with eastern horizon at top). Designed also as a cartographic real-estate advertisement showing residential lots (with lot lines) available for purchase in the subdivision. Oriented with north to the left. Includes texts (advertisements) in lower margin and col. ill. of buildings in upper/lower margins. LC copy imperfect: Annotated in lead pencil, fold-lined. Real property--New York (State)--Riverhead--Maps. Real estate development--New York (State)--Riverhead--Maps. Riverhead (N.Y.)--Aerial views. United States New York (State) Riverhead. Available also through the Library of Congress Web site as a raster image. http://hdl.loc.gov/loc.gmd/g3804r.pm020500